Then there were two series of "Tom Swift" books, the first featuring what became the senior Swift, the second featuring his son. When I was in grade school, I found only one title in the first series, buried in the school library: "Tom Swift and his Submarine". The front plate describes additional titles, none of which I ever found, let alone read.
read al the books for free
find them here - https://www.gutenberg.org/ebooks/3005
The original Tom Swift books can be found on the Project Gutenberg web site. You can even download audio versions.