I think
Lisa and
Jack can stand on their own.
Jack is a medieval coinage, and IMO it seems rather silly to call a child
John and then insist on calling him
Jack 99% of the time. I know my neighbour (an 85yo
John nn
Jack) got incredibly frustrated when he was in hospital and all of the doctors insisted on calling him
John because there was no space on the forms to write a preffered name.
Has anyone said
Harry or
Tessa? Or
Toby? Hmm maybe not
Toby.