I popped back onto Scotlandspeople when I got your message... there are 43 Jean Cant births beween 1700 and 1834 but to narrow it down it would help if you knew roughly where she came from...as none of them are from the same parish where they got married in
16 Dec 1789 CANT JEAN ALEXR. NICOLL F MAINS AND STRATHMARTIN 307/00 0003
As to the 1881 Census... if she was born in 1807 as you thought she would be 74 ... the entry I found was
Dwelling: 174 Seagate
Census Place: Dundee, Forfar, Scotland
Source: FHL Film 0203485 GRO Ref Volume 282-4 EnumDist 2 Page 13
Marr Age Sex Birthplace
Margaret KENNEDY W 75 F Dundee, Forfar, Scotland
Rel: Head
Betsy KENNEDY U 50 F Dundee, Forfar, Scotland
Rel: Daur
Occ: Jute Spinner
Ann KENNEDY U 13 F Dundee, Forfar, Scotland
Rel: Grd Daur
Occ: Shifter Half Timer
Jane ABERNETHY U 25 F Dundee, Forfar, Scotland
Rel: Boarder
Occ: Jute Spinner
Agnes MARSHALL U 28 F Glasgow, Lanark, Scotland
Rel: Boarder
Occ: Mill Worker
Dwelling: 85 Cowgate
Census Place: Dundee, Forfar, Scotland
Source: FHL Film 0203485 GRO Ref Volume 282-4 EnumDist 2 Page 37
Marr Age Sex Birthplace
Margaret KENNEDY M 74 F Mains, Forfar, Scotland
Rel: Head
Occ: Sack Sewer
Mary KENNEDY U 40 F Dundee, Forfar, Scotland
Rel: Daur
Occ: Mill Worker
Margaret KENNEDY U 31 F Dundee, Forfar, Scotland
Rel: Daur
Occ: Reeler (Mill Worker)
Edward KENNEDY U 32 M Dundee, Forfar, Scotland
Rel: Son
Occ: Cork Cutter
I agree it could be either but since one was widowed lol... I thought it may be her like you I could not find a David Kennedy of the right age... I should have said last night that I did find a David Kennedy but much younger... could he be a son I wonder... I do have all the discs for the 1881 Census and will happily do any searchs for you on them...
I do agree with you it is unlikely that they would have had a 9 year gap between children.... I will look again on Scotlands people when I get a few more credits... I do budget myself to 60 a month lol... but I won't forget you and will stay in touch if I find anything...
Best Wishes
Mo