Your serial number is almost certainly found under the bottom bracket or "crank hanger". You might have to remove some paint to find it, if so, do so carefully. You will have to have help to decode it because they were repeated over many decades. That's why detailed pics are so important. Those bikes were made in many styles for many different brands from the turn of the 20th century all the way up through the fifties. There is a phenomenal wealth of knowledge here but I doubt you will learn much more without doing some due diligence. And most of us put a general location in our user profiles, this would help with any value estimates. Good luck.

P.S. Unless your user name means North Texas of course