I am trying to establish whether my grandmothers brother was British or not ( because his son, who I’ll call my cousin - he’s actually my mums - is looking into applying for British nationality). Gran’s brother was born in Glasgow to a British mother and a French father ( cousin has French nationality). To be able to be British cousin needs to prove his father was British when he (cousin) was born ( in France). He can’t remember his father ever having a British passport. Is there any way I can help at this end, by proving his dad was British? Where do I start😕? I live near the public record office, but I suspect they might not hold Scottish records. Thanks for any advice.