Help with songs my Gran used to sing

My Gran died nearly 30 years ago. At the weekend I heard the song The Answer To Everything by Del Shannon and it immediately made me think of her.

She used to sing, typical songs of her era I think (50s and 60s probably). Can anyone help me make a playlist for my mum, to remind her of her mum singing?

Think - what would a wee Glasgow/West Coast gran sing at karaoke in the 80s or 90s?! Crooner love songs, cute older songs.

I've thought of:

Crazy - Patsy Cline

Rose Garden - Lynn Anderson

I'm Sorry - Brenda Lee

Black is Black - Los Bravos

Delilah and Green Green Grass of Home - Tom Jones

Thanks :)