As a starter though have you seen these Margaret Clarke (nee Crilley) stamps? I don't have many more details about Margaret Crilley other than what is here. She's the wife of Harry Clarke and the sister of my wife's great grandmother.
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Paul Clarke's blog - I live in Hythe in Kent. Married + dad to 2, I'm a full stack web engineer, + I do js / Node, some ruby, other languages etc. I like pubs, running, eating, home automation + other diy stuff, history, genealogy, Television, squirrels, pirates, lego, and TIME TRAVEL.