The second book is titled Pluck and Luck. It is signed similarly but has no "Sr" after the father's signature. It is inscribed "For the Benchley boys' "Miss Moyer." No date but the book is 1925 and the kids' printing is more primitive. It has a small stain on the cover.
I believe I obtained these at a sale at the Langhorne-Middletown Library in Langhorne, PA in the 1960's.
Do you know anyone who might be interested in having these books?
If you are interested, contact me at email@example.com and I'll put you in touch with Sarah.