My first handgun was a Ruger P-89D, bought used for $200 from a buddy. It ran great, but needed a new barrel as it had had thousands through it and it was leaving everything low and right. Sold it off to get my current carry, a CZ-75 P-01 Compact.
Mine is a S&W Model 19 .357 Mag with a 4" barrel, that I still use to this day as my BUG to my pump 12 gauge for home defense. The only mod I made to it was adding a Hogue rubber grip which makes it a little thinner and easier for me to handle
A S&W 586 w/ 4" barrel. My mother bought for me on my 21st birthday. It was "my" first handgun. I still have it today. I had "access" to other handgun when I was much younger, but this was my first!
My first hangun was .22 revolver. I got it when i was 14 which was along long time ago. I really enjoyed that little wheel gun. I think it was a smith but that was 50 years ago lol