There is a Donald Cameron who in 1861 shows as a Grocer living with this family at 259 High Street, Elgin:
Donald Cameron 39, grocer b. Abernethy
Janet Cameron 29 b. Dallas - m.s. Grigor
Margaret Cameron 10
Donald Cameron 8
Duncan Cameron 5
Jessie Cameron 3
Mary Ann Cameron 5 Months
Emilie Innes 17, servant
This couple didn't marry until Dec. 1854, so Margaret and Donald, children above born before their marriage. In 1851, Janet living with her brother and sister in Dallas, with baby Margaret aged 7 mnths.
1851, I think this is Donald (still to follow through more to DC) with his parents....and who I am hoping is the elusive young Robert Cameron who died in 1865, showing as 'son'. Note also Duncan Snr's occupation. Everyone showing here as born in Abernethy:
Duncan Cameron 64, mason master
Mary Cameron 63
Donald Cameron 30 labourer
Duncan Cameron 18 labourer
Janet Cameron 23
Robert Cameron 12, son (...to a woman in her 60's...not impossible...but full of hope!)
Address: Blairgorm, Abernethy and Kincardine, Moray
The second signature from 1863 I have attached on the other post comes from the birth of Joana, daughter to Donald and Janet. Donald still shows as a grocer and living then at 86 High Street, Elgin.
I have got as far as 1871:
Donald Camerson 48 labourer born Abernethy
Janet Grigor 39
Margt Cameron 21
Duncan Cameron 15
Mary Ann Cameron 19
Joann Cameron 8
Address: 15 Duff St, Inverness
Monica