This is mainly for Graeme Hill, but because it would be very difficult to work out this family and all their surname variations without looking at detailed Maughold records, I'll put them here for the record.
[Maughold records from Tom Corteen.
1851 censuses from Brian Lawson.]
Starting from: William Corlett & Margaret Killey married 31 Dec 1836 [Margaret by consent of parents].
KILLEY/GILL:
Margaret dau of Thomas Killey & Margaret Cringall bapt. 6 Jul 1817
Thomas Killey & Margaret Knickle married Maughold 31 Oct 1807
Maughold bapts:
John son of Thomas Killey & Margaret Knickle bapt 25 Sep 1808
Thomas son of Thomas Killey & Margaret Cringal bapt 17 May 1812
Margaret dau of Thomas Killey & Margaret Cringall bapt. 6 Jul 1817
James son of Thomas Kelly als Gill & Margaret Cringal bapt 11 Sep 1831
1841 Maughold census:
3 9 35 Thalloqueen Cottage Thomas GILL 60 Taylor Isle of Man
3 9 35 Thalloqueen Cottage Thomas GILL 25 Isle of Man junr
3 9 35 Thalloqueen Cottage Margaret GILL 50 Isle of Man
3 9 35 Thalloqueen Cottage James GILL 9 Isle of Man
Thomas KILLEY aged 73, Thalloo Queen, buried 9 Mar 1851
1851, Maughold, district 3, schedule 53, Thallowqueen
Margaret Gill, head, widow, 63, domestic occupation, Douglas
John, son, unmarried, 42, agricultural labourer, Maughold
Thomas, son, unmarried, 38, master tailor, Maughold
James, son, unmarried, 19, tailor, Maughold
Ann Corlett, grand daughter, 10, scholar, Maughold
1861:
3 24 Ballacorteen John GILL Head Unm 52 Labourer Maughold
3 24 Ballacorteen James GILL Brother Marr 29 Sailor “
3 24 Ballacorteen Margaret GILL Mother Wid 73 “
3 24 Ballacorteen Jane GILL Wife 21 “
3 24 Ballacorteen Margaret GILL Daughter 2 mths “
Margaret GILL bapt 24 Feb.1861 Dhoon Christ Church dau of James GILL & Jane KINCAID
Anne GILL bapt.12 Oct.1862 Dhoon Christ Church
James GILL & Jane KINRADE marr.15 Dec.1860 Ramsey
Margaret GILL aged 83 Ballacorteen buried Jul 22 1870.
[Margt bapt. 4 Nov.1789 Saint Mathews, Douglas, dau of John NICHOL & Margt CRELLIN? ~ or ~ Margt bapt 6 May 1787 Saint George, Douglas, dau of Phil NICHOLSON & Margt CALLISTER?]
1881 census:
James GILL Head M Male 48 Maughold Tailor
Jane GILL Wife M Female 44 Maughold
Margaret GILL Daur U Female 19 Maughold Housekeeper Domestic
Catherine GILL Daur Female 10 Maughold Scholar
James GILL Son Male 9 Maughold Scholar
Harriet GILL Daur Female 6 Maughold Scholar
Emma GILL Daur Female 4 Maughold Scholar
Henry GILL Son Male 2 Maughold Scholar
William GILL Son Male 1 Maughold
--------------------------------------------------------------------------------
Source Information: Dwelling Ballacorteen
Census Place Maughold, Isle of Man
Family History Library Film 1342345
Public Records Office Reference RG11
Piece / Folio 5600 / 45 Page Number 12
CORLETT:
William Corlett & Margaret Killey married Maughold 31 Dec 1836
William son of John Corlett & Mary Kissack bapt.18 Jul 1813
John Corlett & Mary Kissack married Maughold 11 Feb 1797
1841 census:
3 16 65 Rhenabb John CORLETT 70 Ag lab Isle of Man senr
3 16 65 Rhenabb Mary CORLETT 70 Isle of Man
3 16 65 Rhenabb Thomas CORLETT 20 Isle of Man
John CORLETT aged 77, Rhenab, buried Apr 19 1848
John son of John Corlett & Jony Cowle bapt.13 Jan 1772 Private baptism
Mary CORLETT aged 75, Rhenab, buried 20 Mar 1850
Mary dau of Robert Kissage & Mary Corkil bapt.28 Feb 1773
1851 Maughold, district 3, schedule 89, Rhenabb
Thomas Corlett, head, unmarried, 32, journeyman shoemaker, Maughold
Maughold bapts:
Mary John Corlett/Mary Kissage 4 Feb 1798
Margaret John Corlett/Mary Kissack 26 Oct 1800
John John Corlett/Mary Kissage 6 Jan 1804
Joney John Corlett/Mary Kissack 25 May 1806
Daniel John Corlett/Mary Kissage 12 Nov 1809
Jane John Corlett/Mary Kissack 2 Aug 1812
William John Corlett/Mary Kissack 18 Jul 1813
Thomas John Corlett/Mary Kissack 19 Jan 1817
John CORLETT & Margaret HOGG (married 28 Aug 1830?):
1841:
3 16 66 Rhenabb John CORLETT 35 Ag lab Isle of Man
3 16 66 Rhenabb Margaret CORLETT 35 Isle of Man
3 16 66 Rhenabb Mary CORLETT 11 Isle of Man
3 16 66 Rhenabb Judith CORLETT 9 Isle of Man
3 16 66 Rhenabb John CORLETT 7 Isle of Man
3 16 66 Rhenabb Thomas CORLETT 4 Isle of Man
3 16 66 Rhenabb Daniel CORLETT 2 Isle of Man
William CORLETT & Margaret GILL/KILLEY (married 31 Dec 1836):
1841:
3 4 15 Tallooqueen William CORLETT 25 Lab Isle of Man
3 4 15 Tallooqueen Margaret CORLETT 20 Isle of Man
3 4 15 Tallooqueen Daniel CORLETT 3 Isle of Man
3 4 15 Tallooqueen Ann CORLETT 1 Isle of Man
Maughold bapts:
Daniel John son of William Corlett & Margaret Gill bapt.18 Jan.1838
Ann dau of William Corlett & Margaret Gill bapt.27 Jan.1840 [with grandparents in 1851]
William son of William Corlett & Margaret Gill bapt. 3 Oct.1841
Margaret dau of William Corlett & Margt Kelly or Killey bapt. 4 Feb 1844
Mary dau of William Corlett & Margaret Gill bapt.25 Oct.1846
[to 1848]
Maria CORLETT aged 3 Thalloo Queen buried 26 Aug.1849
Daniel CORLETT aged 13 Thalloo Queen buried 13 Mar.1851
1851, Maughold, district 3, schedule 52, Thallowqueen
William Corlett, head, married, 39, ag lab, Maughold
Margaret, wife, married, 33, Maughold
William, son, unmarried, 9, Maughold
Margaret, daughter, 6, Maughold
Leonora, daughter, 2, Maughold
Charlotte Kermeen, lodger, 11 months, Maughold
1861:
3 6 Corony William CORLETT Head MAR 46 Labourer Maughold
3 6 Corony Margaret CORLETT Wife MAR 43 Maughold
3 6 Corony Elinor CORLETT Daughter 12 Maughold
3 6 Corony Thomas CORLETT Son 9 Maughold
3 6 Corony John CORLETT Son 7 Maughold
3 6 Corony James CORLETT Son 4 Maughold
3 6 Corony Edward CORLETT Son 2 Maughold
Maughold marriage: 18 Aug 1874
Edward CHRISTIAN aged 24, Bachelor, Miner, residence Dalton_in Furness, father: John Christian, Nailer, and Leonora CORLETT aged 26, Spinster, residence Ballagorry, father: William Corlett, Roadman.
Leonora Jane CORLETT bapt.29 May 1849 Maughold dau of William CORLETT & Margt. [IGI]
1881:
William CORLETT Head M Male 67 Maughold, Isle of Man High Road Labourer
Margaret CORLETT Wife M Female 62 Maughold, Isle of Man
Edwin CORLETT Son U Male 22 Maughold, Isle of Man ((Labourers Son))
--------------------------------------------------------------------------------
Source Information: Dwelling Ballagorry
Census Place Maughold, Isle of Man, Isle of Man
Family History Library Film 1342345
Public Records Office Reference RG11
Piece / Folio 5600 / 41 Page Number 4
Sue