After eliminating the christening records for his daughter Mary Hall in the bigger English indexes, my theory is that Mary was born in Mendon, MA where her father was living from at least 1688 to his death in 1727. She could not have been born earlier than 1687, having her last child in 1736.
I know her birth just wasn't recorded--but not having an identity for her mother is vexing. Has anyone found any clues at all for Robert Hall, his wife or possible in-laws in records in colonial records?