Hi Peoni
To be 100% certain, you will need to check the marriage entries on Scotlands People, the ptv site for Scottish BMDs.
There are these possible births showing for Andrew Snr and Joseph to parents Andrew Clark and Margaret McCulloch:
1. ANDREW CLARK Birth: 12 JAN 1865 Bridgeton, Glasgow
2. JOSEPH CLARK Birth: 20 SEP 1867 Bridgeton, Glasgow
A possible for this family in 1881:
Margaret Clark 38 b. Greenock Renfrewshire
Andrew Clark 16, Telegraph Messenger
Joseph Clark 13, Lemonade Van Boy
Christina Clark 9
Maggie Clark 4
Address: 15, Fairley St., Dennnistoun Glasgow
There is a Margaret Clark showing as sister to Andrew in the 1901 census so above census entry would be a good fit.
Monica
