Details of ancestor Isabella Gollan b. 1816.

Hello Gollan Family,
Can anyone please help me with information on an ancestor of mine, Isabela Gollan. She was born in 1816 in Marylebone, Middlesex (London) Her Father's name was Charles Gollan (I have no further information on him)
She married my great, great, great, grandfather John Pask on 30/4/1840 and 7 kids followed ! I understand that the Gollan's are originally from Scotland so it would be interesting to know what my ancestors were doing in London.(I have a copy of their marriage certificate, and census information for them in 1841 and 1851)
I will gladly share the information I have and send copies etc to anyone interested.
best wishes
Greg Theo.