Hi Jean,

I think you searched for all the Margaret Gills in the time period, and followed them up?

I thought it might be worth looking for Margaret Killeys who could have had a baby in 1827, because in Maughold records, and possibly other parishes, the names were used interchangeably.

Margaret Killey
Isle of Man, Parish Registers, 1598-1950
christening: 20 December 1808 Lezayre, Isle of Man
father:William Killey
mother:Jane Caraghey

Margaret Killey
Isle of Man, Parish Registers, 1598-1950
christening: 8 January 1811 Patrick, Isle of Man
father:Henry Killey
mother:Margt Callin

Margaret Killey
Isle of Man, Parish Registers, 1598-1950
christening: 14 August 1796 Braddan, Isle of Man
father:Philip Killey
mother:Cath Kelly

Margaret Killey
Isle of Man, Parish Registers, 1598-1950
christening: 8 February 1789 Douglas(St George's), Isle of Man
father:Jno Killey
mother:Jane Fargher

Margaret Killey
Isle of Man, Parish Registers, 1598-1950
christening: 2 August 1812 St Anne, Isle of Man
father:John Killey
mother:Eleanor Kneen

Margaret Killey
Isle of Man, Parish Registers, 1598-1950
christening: 20 January 1788 German, Isle of Man
father:John Killey
mother:Margaret Mylchreest

Margaret Killey
Isle of Man, Parish Registers, 1598-1950
christening: 4 October 1801 German, Isle of Man
father:John Killey
mother:Isabella Quayle

Margaret Killey
Isle of Man, Parish Registers, 1598-1950
christening: 5 November 1797 German, Isle of Man
father:William Killey
mother:Margaret Cain

Margaret Killey
Isle of Man, Parish Registers, 1598-1950
christening: 21 December 1797 German, Isle of Man
father:John Killey
mother:Catharine Scarffe

Margaret Killey
Isle of Man, Parish Registers, 1598-1950
christening: 9 October 1803 German, Isle of Man
father:Wm Killey
mother:Jane Gawn

Margaret Killey
Isle of Man, Parish Registers, 1598-1950
christening: 19 April 1812 German, Isle of Man
father:Charles Killey
mother:Margt Christian

Margaret Killey
Isle of Man, Parish Registers, 1598-1950
birth: 1798
burial: 23 July 1831 Patrick, Isle of Man

Margaret Killey
Isle of Man, Parish Registers, 1598-1950
birth: 1810
burial: 11 May 1880 Patrick, Isle of Man

Margaret Killey
Isle of Man, Parish Registers, 1598-1950
birth: 1810
burial: 24 December 1878 German, Isle of Man.

These are the only IOM Margaret Gills I could find at the right time:
Margaret Gill
Isle of Man, Parish Registers, 1598-1950
christening: 9 February 1800 Lezayre, Isle of Man
father:Ewan Gill
mother:Anne Christian

Margaret Gill
Isle of Man, Parish Registers, 1598-1950
birth: 1787
burial: 22 July 1870 Maughold, Isle of Man

Margaret Gill
Isle of Man, Parish Registers, 1598-1950
birth: 1809
burial: 8 January 1880 Patrick, Isle of Man

Margaret Gill
Isle of Man, Parish Registers, 1598-1950
birth: 1804
burial: 8 July 1883 German, Isle of Man

Any ideas? None stand out to me. No mother Elizabeths, or Caleys.

This Robert Gill caught my eye in the 1841 census:
GILL, Jane F 75 1766 Isle of Man
GILL, Robert M 30 1811 Isle of Man (no occupation given)
Piece: 1464
Book/Folio: 7/7
Page: 8
Civil Parish: Maughold
Address: Village Of Maughold, Maughold
County: Isle of Man

There are three mothers Jane Killey, above.

Could be Robert son of Patrick Killey/ Jane Christian Maughold Parish Church 13 Aug 1811. - Or an older Robert with age reduced for the census.
Pat Killey was buried Jan 28 1827. Jane Killey, 81, bur.Apr 10 1846.

Not a lot of use!

Sue