The photo names the 3 young girls in the front, L to R as:
Betty, Marie and Delia. In trying to date the photo:
Marie, the youngest girl looks about 4? Maybe she at least was born in Glasgow area?
Scotland's People: There are two births in Lanarkshire:
1) Marie RAFFERTY 1936, College
2) Susan Marie RAFFERTY, 1942, Lanark
Great-Aunt Mary RAFFERTY (top row, arms around Delia) was born in 1916 Ballymoney, Kilkeel as follows, registered in Kilkeel, Co. Down:
https://civilrecords.irishgenealogy.ie/Mary Elizabeth RAFFERTY, b 14 May 1916, Ballymoney
Father: John RAFFERTY, Mason, of Ballymoney
Mother: Rose RAFFERTY, formerly MC LEAN
Informant: Mary RAFFERTY (her X mark) present at Birth, of -----------.
She had a brother Michael RAFFERTY (mms Mc CLEAN) born 1914.
She had a brother Patrick Joseph RAFFERTY (mms MC CLEAN) b 1912
If little Marie who looks about 4, was born 1936 - the photo dates to about 1940?
And Mary Elizabeth Rafferty born 1916, would be about 23/24 in 1940. Seems to fit?
If little Marie who looks about 4, was born 1942- the photo dates to about 1946?
And Mary Elizabeth Rafferty born 1916, would be about 30 in the photo. She looks younger than 30?
Did Great-Aunt Mary RAFFERTY marry? If she did, this photo predates the marriage.
Do you you know when the middle cousin Mary Catherine McLEAN was born and her mother's maiden name? Aside from reminding me of Wallis Simpson……she looks the elder of the women? Maybe in her 40's? Was she married? Again, just trying to date the photo.
Another thing, do you know when Granny McLEAN died, as it infers she was alive when the photo was taken?
Cheers
AMBLY