Hope this helps a little:
Source: Find My Past
George Hughan married Elizabeth Dickson on 6 May 1808 at Kirkinner.
1841 Census: Whithorn, Wigtownshire, Scotland.
George Hughan, Male, 55, 1786, Wigtownshire.
John Hughan, Male, 20, 1821, Wigtownshire.
Alexander Hughan, Male, 15, 1826, Wigtownshire.
Janet Hughan, Female, 14, 1827, Wigtownshire.
Anthony Hughan, Male, 12, 1829, Wigtownshire.
George Couper, Male, 20, 1821, Wigtownshire.
1841 Census: Ravenston Mill, Sorbie, Wigtownshire.
Elizabeth Hughan, Female, 50, 1791, Wigtownshire.
plus 9 other people..
George and Elizabeth's children:
John Hughan, baptised 30 Aug 1819 at Whithorn.
George Hughan, baptised 18 May 1821 at Whithorn.
Alexander Hughan, baptised 20 Dec 1823 at Whithorn.
Alexander Hughan:
https://www.findagrave.com/memorial/55356407/a_-s_-hughan
John Hughan:
https://www.findagrave.com/memorial/55357250
The Valley Falls New Era, 23 January 1892, page 5 has an obituary notice for Jessie Hughan born 28 November 1828 at Whithorn, Wigtownshire (sister of Alex Hughan) married Isaac Southward in England 1867.
https://www.findagrave.com/memorial/67367100/jessie-southward
1851 Census: George Hughan, age 71, Elisabeth Hughan age 65 and Anthoney Hughan age 23 at Whithorn, Wigtownshire.
1861 Census: nil George or Elisabeth at Whithorn, Wigtownshire.
The other Hughan Family..........
Alexander Hughan married Mary Dodds on 23 February 1824 at Mochrum.
1841 Census: Glasserton Mains, Glasserton, Wigtownshire, Scotland.
Alexander Heughan, Male, 35, 1806, Wigtownshire.
Mary Heughan, Female, 42, 1799, Ireland.
John Heughan, Male 13, 1828, Wigtownshire.
Alexander, Heughan, Male, 14, 1827, Wigtownshire.
Agnes Heughan, Female, 11, 1830, Wigtownshire.
Elizabeth Heughan, Female, 8, 1833, Wigtownshire.
George Conning, Male, 15, 1826, Wigtownshire.
Alexander Heughan, Male, 75, 1766, Wigtownshire.
Alexander and Mary's children:
Alexander Heughan, baptised 14 August 1826 at Whithorn.
John Heughan, baptised 9 April 1828 at Old Luce or Glenluce.
Some of this family went to Boonton, Morris, New Jersey, United States of America.
Mary Dodds Hughan:
https://www.findagrave.com/memorial/6494288/mary-hughan
Agnes Hughan Clave:
https://www.findagrave.com/memorial/6494283
Orchardton Farm Hughan's........
Alexander Hughan married Christin Cowan on 21 Apr 1792 at Kirkinner, Wigtown.
4 children located from that marriage:
Thomas Hughan baptised 1793, Kirkinner, Wigtown. (Had children with Janet Law)
1841 Census: High Street South, Wigtown, Wigtownshire.
Janet Heughan, Female, 35, 1806, Wigtownshire.
Grace Heughan, Female, 10, 1831, Wigtownshire.
Mary Heughan, Female, 8, 1833, Scotland.
Alexander Heughan, Male, 6, 1835, Scotland.
Euphemia Heughan, Female, 4, 1837, Scotland.
Ebenezer Drew Hughan baptised 5 Apr 1795, Kirkinner, Wigtown.
Ebenezer Heughan was 1st married to Jane Leslie at Sorbie on 18 March 1819.
Ebenezer Heughan was 2nd married to Maria Shilan or Sheiland or Shellan at Sorbie on 18 January 1839.
1841 Census: Orchardton Farm, Sorbie, Wigtownshire.
Ebenezer Hughan, Male, 40, 1801, Wigtownshire.
Maria Hughan, Female, 20, 1821, Scotland.
Anne Hughan, Female, 13, 1828, Wigtownshire.
Alexander Hughan, Male, 12, 1829, Wigtownshire.
William Hughan, Male, 10, 1831, Wigtownshire.
Margaret Hughan, Female, 8, 1833, Wigtownshire.
Peter Hughan, Male 6, 1835, Wigtownshire.
Christina Hughan, Female, 4, 1837, Wigtownshire.
John Hughan, Male, 1, 1840, Wigtownshire.
Sanders Hughan baptised 24 Sep 1797, Kirkinner, Wigtown. aka Alexander married 14 May 1826 - Marion Kidd Storm at St Marylebone Westminster.
1841 Census: Cottagehouse Millside, Sorbie, Wigtownshire.
Alexander Hughan, Male, 35, 1806, Wigtownshire.
Marion Hughan, Female, 30, 1811, Scotland.
Isabella Hughan, Female, 12, 1829, Wigtownshire.
Jessie Hughan, Female, 9, 1832, Wigtownshire.
Manie Hughan, Female, 4, 1837, Wigtownshire.
Margaret Hughan, Female, 2, 1839, Wigtownshire.
Ann Hughan, Female, 0, 1841, Wigtownshire.
Robert Hughan baptised 26 Mar 1800, Kirkinner, Wigtown. Robert married 22 Jul 1834 - Mary Kelly at Kirkmabreck.
1841 Census: Creetown, Bridge Street, Kirkmabreck, Kirkcudbrightshire.
Robert Hughan, Male, 40, 1801, Kirkcudbrightshire.
Mary Hughan, Female, 40, 1801, Kirkcudbrightshire.
John Hughan, Male, 6, 1835, Kirkcudbrightshire.