I like
Irving, though I'm somewhat biased because it's a family name. Out of the old man names, I think it is one of the ones primed for resurgence. I much prefer it to
Irwin,
Mervin,
Melvin, et al.
Possible sibsets:
Abram Adair Conrad Cyrus Declan Edmund Harlan Roderick Thornton for the boys
Astrid Beatrix Eirlys Ginevra Isolde Mariel Odette Rowena Victoria for the girls