A monumental Inscription in Crossmichael, Kirkcudbrightshire, remembering Andrew Brolochan and family, mentions ''son in law John SOLLY d Calcutta 25.4.1833, aged 36.''
The 1841 Census in Kelton, a neighbouring town, includes a William Sully (as transcribed by Ancestry.The Scotlandspeople origin is very indistinct) aged 7 (or 9, ditto) born in England. He is living with Agnes Rafferty, William Rafferty's second wife, who was born Agnes Brolochan, in Crossmichael. I can not find mention of William in later census returns, nor on Scotlandspeople. (although there are a few other Sollys) If he had died in childhood, the church records in Scotland were poorly kept, so he wouldn't necessarily show up. I haven't yet checked whether he'd returned to ?paternal grandparents.
There is a Burial of John Solly on 17th November 1834, at Howra, Bengal. Aged 21, seaman on the barque Vesper of London. Howra is very near Calcutta. (Source: British Library India Office Family History Search) Although the details vary, it may well be the same man.
On IGI there is also a birth of a William Solly 14/3/1832, baptism 8/4/1832 at Clover St Ebenezer or Great Meeting Independant CHATHAM. Parents are John and Agnes Solly. I can't find a marriage.
If Agnes Brolochan/Rafferty was William's mother, which seems a possibility,( but not proved,) it would mean that my gggm Jane Bell probably had a half brother, William Solly. Agnes Brolochan had a child with John Bell, miller in 1820, and 2 more(including my gggm) in 1826/1829. (no record of marriage/births) If Agnes and John had moved to England (where he was born) to escape censure, then a possible scenario suggests the relationship broke down. John married somebody else in 1832 in Kirkcudbrightshire, Agnes returned, widowed ?, with son William Solly, and Agnes' mother cared for my gggm (41 census) Any views gratefully received !