the father, George, is a gas inspector:
10 years later(1871):
Name
George Lawrence
Gender
Male
Marriage Date
16 Jun 1846
Marriage Place
Old Machar,Aberdeen,Scotland
Spouse
Martha Ann Wink
FHL Film Number
991250
Probably the most useful item is the probate record for Mary Lawrence's husband James Jaffray, pulling together as it does several members of the family including brother-in-law George Lawrence
https://www.ancestry.ca/sharing/26123566?h=1fc754&utm_campaign=bandido-webparts&utm_source=post-share-modal&utm_medium=copy-url