I'm a middle-aged, Anglo-Scottish author, poet, and editor who likes her written works to speak for her. When asked for a bio I usually reply with a version of the famous telegram sent by the artist Balthus:
"NO BIOGRAPHICAL DETAILS. BEGIN: MARIE MARSHALL IS AN AUTHOR OF WHOM NOTHING IS KNOWN. NOW LET US READ THE BOOKS. REGARDS. M."
And that'll have to do!