There are various records for the Seton's of Meldrum not only in Scotland, but also in France and in Rome.  The Scots College at Douai, for example, lists records for "Baroni de Meldrum" stemming after the beginning of the 15th century.

William Seton, 2nd Seton Laird of Mounie, of the family of Meldrum, was Regius Professor of Jurisprudence at Angiers and was one of the greatest lawyers of his age.  He was residing at Rome when Dempster wrote his History (c. 1627).  William was also mentioned by Francisque-Michel, in his writing, "Les Ecossais en France", (ii. 295) as "le docteur William Seton", one of the most learned men of his time - a distinguished "jurisconsulte", and, in the opinion of his contemporaries, "le flambeau de l'epoque".  William also wrote a volume on the life of Chancellor Alexander Seton entitled the Life of Chancellor Seton, which Dempster refers to in his History.  He mentions it as by, "Gulielmus Setonius, J.C..,  Alexandri consanguineus, et olim familiaris", which was intended to be published by William and not fulfilled.

John Seton, of Lumphart, Broomhill (also called "Breemie" near Dunecht) and 1st of Mounie in Aberdeenshire was the second son of William Seton, 5th Seton Laird of Meldrum by his wife Janet Gordon of Lesmoir in Aberdeenshire.  John Seton held the two former lands confirmed by a Charter under the Great Seal in 1575, and retained the lands of Mounie under a Charter dated 1597. John married Marjory Panton (Patton?) of Pitmedden and had a son, William Seton of Mounie and later of Udny.  William Seton of Mounie married the heiress Helen Udny of Udny and thereby sold Mounie to John Urquhart of Craigfintry and his wife, Elizabeth Seton of Meldrum, and became William Seton of Udny.  By his first wife Helen Udny, he had two sons, William Seton of Menie and Alexander Seton of Kinloch (d. 1672), by his second wife, Marjory Innes of Cotts, he had three son's: James, David and Thomas.

John Seton, called "of Menie", and later "of Auquorthies":  Chamberlain to the Earl of Dunfermline, his portrait is at Mounie Castle in Aberdeenshire.  He was also mentioned in the funeral of Chancellor Seton in 1622, as then being of Menie, "John Seaton of Menies Chamberland of Fyvie".  By 1638, he is settled at Aquhorthies, where the Skene family papers record him having sent wood to aid his cousin, wife of the Laird of Tibertis. He is remembered in the family papers of the Skene's of Rubislaw as: "Letter from John Seton to Laird of Tibertis (Tipperty) sending wood to aid cure for the gravel for his cousin John Skene's wife, dated at Auchquhorty, 17 June 1638".  He received Lumphart and Broomhill from his father.

Alexander Seton of Mounie, of the family of Meldrum married Isabel Leslie of Balquain in the late 1400’s or early 1500’s. She was the daughter of William Leslie of Balquain who succeded in 1496 and who’s wife was Elizabeth Ogilvie of Boyne (dau. of Sir Walter Ogilvie of Boyne).  Alexander Seton was Chancellor of Aberdeen and Vicar of Bethelme.

William Seton (Seaton) of Udny and Menie (Menies/Meanies) of the Seton's of Meldrum family line, is mentioned in the funeral account of Alexander Seton, Chancellor of Scotland and 1^st Earl of Dunfermline, in 1622. It is mentioned in the funeral account of Alexander Seton, 1st Earl of Dunfermline and Chancellor of Scotland, that William Seton of Oudnie (Udny) and the, "Good Men of Mounie" carried the arms of the House of Hamilton of Sorn in the procession, 19th July, 1622 (Memoirs of Chancellor Seton, by George Seton, Rep. of Cariston, 1882). This William Seton was son of John Seton of Lumphart Broomhill and 1st of Mounie.  The only other reference that I have been able to find is in Land Ownership Records for Belhelvie.  In 1629, William Seton bought the lands and barony of Menies, Aberdeenshire, from George Gordon. He married Margaret Graham and had a son John Seton of Udny, born about 1630. He lost the lands of Menie in 1633, whereby his creditor, Robert Graham of Morphie, was granted his lands. In 1696, James Seton (Seaton) re-acquired the lands, though no further details are known.

James Seton of Menie (Meanie):  James Seton, last of Seton Meanies / Menie had a sister, Margaret Seton,who married Thomas Fraser of Cairnbulg (born 1649 ?) as his second wife.  James died without issue in 1707 and the line's representation passed to Robert Seton, son of Alexander Seton of Kinloch.

..A5 Thomas Fraser of Cairnbulg, b probably 1649, m 1st (contract 23 June 1680) Margaret, elder dtr of Robert Forbes of Ludquhairn, Tutor of Craigievar, and m 2nd Margaret Seton, sister of James Seton of Meanie, and had by his 1st wife issue:
....b1. Margaret Fraser m (contract 2 December 1699) Sir James Innes of Orton, Bt.
....b2. Jean Fraser
....b3. Sophia Fraser
....A6 James Fraser, d young, probably before 26 June 1676
....a2. Margaret Fraser m (contract 5 June 1679) Thomas Gordon of Newark, MD
....a3. Elizabeth Fraser

Thomas Seton of Manx, buried in Kirk Malew, Ilse of Man, 1743, Thos. Seton, son of John Seaton, goldsmith, in Edinburgh, of the family of Meldrum, descended from the Setons, Earls of Winton, in East Lothian, 10th February.

John Seaton of Disblair - He is mentioned in the record of the trial of the murder of William Mackintosh as a juror appointed by the Gordon's, Earl of Huntly, along with William Seton (Seaton) of Meldrum (and others), on August 2, 1550.

George Seton of Schethin - c.1616 (witness)
Mentioned in the account of the funeral of Chancellor Seton in 1622, where he is noted along with his cousin, also George Seton as: "Mr. George Seaton of Barha, the Laird of Schethim Seaton...". He is previously recorded in 1616, in  this  year  an  Obligation  is  recorded  in the Sheriff Court Books of Aberdeenshire on 20th May, 1616, by James Curour in Kinmunite as principal, and Alexander Robertson, Minister at Aboyne, Alexander Curour in Kinmunite, and  George  Gordon  in  Woodend  of  Birse,  Cautioners for 200 merks. The witnesses are George Seton of Schethin; William Dunn, Muirtown of Bourtie; Magnes  Cadonheid, son to Andrew Cadonheid in Cortanes of Drum; Andrew Murray,  on to  homas Murray, Burgess, Aberdeen; and Andrew Clark, Procurator. http://freepages.genealogy.rootsweb.com/~sommers/3_decendents_of_drum.txt

Seaton's in Strichen:

William Cardnocht, on 17 Nov 1603, William being a minor, curators were appointed to him, viz Mr. James Rosie, minister Aberdeen, and Mr. Robert Paip, Advocate, Aberdeen, John the minors brother being cautioner for the curators. There were called in the curatory proceedings in the Aberdeen Sheriffs Court the minors next of kin viz John his brother; Edward Cardnocht servitor to Lady Balquhain; Patrick Smyth in Fraserburgh; Alexander Cardnocht in Kirkton of Philorth; John Urquhart of Culbo; George Seaton of Schethine; Mr. Alexander Seaton of Boinakellie. Alexander Seaton in Aberdeen and the two curators appointed [Abd Shff’s rec 2/54]

Seaton Presbyterian Ministers from Aberdeen who Emigrated to Ireland - This congregation was sometimes called Hillsborough (Anahilt Presbyterian, Co. Down).  Rev. John McBroom settled here as the first minister.  He had been ordained in Portpatrick in 1656, deposed for non-conformity in 1662, and was installed here in 1663.  He died on 7^th July 1682 as appears from the tomb-stone still to be seen in Anahilt graveyard.  It is there stated that he was here twenty years. There were disputes about the boundary of the congregation and that of Lisburn.  In those days people had to go to the meeting house of the district and not to another at a greater distance, even if they greatly preferred the distant minister.  In 1697 ‘perambulators’ were appointed by the Synod of Ulster to settle this boundary issue, but in 1698 the people of Blaris asked to be rejoined to Lisburn,  “finding by experience their annexation to Hillsborough (as it was then called) to be extremely inconvenient”.  The next minister after Mr. McBroom, of whom there is any account, was Mr. James Ramsey, son of Rev. Gilbert Ramsey of Bangor, who had previously supplied Maghera and appears to have been ordained here short­ly after the Revolution of 1689. He was present at the Synod in June 1694 and died on 24^th February 1708.  Then came Mr. Charles Seaton (lic. Belfast) who was ordained here on 9^th December 1708.  His father, Rev. P. Seaton of Dyce in Scotland, had been forcibly deposed there and came over to Ireland.  The Rev. C. Seaton died in this charge on 27^th August 1737.

Alexander Seaton of Cuttle-Craigs (Cuttlecraggs) on the Lumphart Estate, Lethenty, Daviot Parish, Aberdeenshire.  He is mentioned in Quaker writings in Ulster Ireland and Pennsylvania, U.S.A.   He was born circa 1652, at Cuttlecraigs, near Lumphart in Daviot parish, and died in 1723 in Hillsborough, Co. Down, Ireland.  His father was  John Seaton of the family of Meldrum.  His four sons, Thomas,  John, James and Andrew, went to Ireland first and then later to Pennsylvania and Virginia, as did his daughter Ruth.  Thomas remained in Ireland.  John married a Jane Edwards in Scotland and learned the Tailor trade, James was engaged in Linen manufacturing in Drogheda, Ireland, and Andrew kept a Public House in Ireland and became quite wealthy, although he was shipwrecked off Sable Island off of the coast of Nova Scotia and lost everything.  Ruth married James Miller of Armagh, Ireland on Feb. 10, 1734, his second wife, in London Grove Pennsylvania. Alexander was an eminent minister of Friends in Ireland, son of John Seaton, of the Seatons of Meldrum, was born about 1652, at Cuttle-Craggs, near Lethinty and Lumphart, in the Parish of Daviot, Aberdeenshire, Scotland, and was brought up a scholar, studying for some time in the college in the old town of Aberdeen. Here in 1675, he became convinced of the Quaker principles and was frequently engaged at that time in their activities in Ulster. Finally, from Glasgow, in 1699, he removed to Ireland, making his residence at Hillsborough, County Down. He died 1 Mo. 1723.--Rutty, Leadbeater, Piety, Promoted.

George Seton was parson of Belhelvie during the 15^th century.  His Arms were in the wall of the Prebends House and noted in the history of the Belhelvie Parish in Aberdeen.

Jean Seton who married Alexander Abercrombie of Fetterneir in 1670 succeeding Hector his father and had a papal charter of Fetternear, was the daughter of John Seton of Newark of the Seton's of St. Germains' line. They had 3 noted sons: Francis Abercromby, their eldest son, who succeeded to Fetternear and married Anna, Baroness Sempill, (who died in 1698) and was in 1685, created Lord Glasfoord for his own lifetime only. He sold Fetternear to Patrick Leslie of Balquhain in 1690. His descendants by Lady Sempill bear the title of Baron Sempill.  Patrick Abercromy , the 3rd son, was the author of "The Martial Atchievements of the Scotish Nation".

William Seton, Farmer in Bonnyton, Udny Parish - His gravestone is noted only that his wife was Margaret Christie Arthur, and that he died in 1894.