You have great images and know so much more about lighting than I did when I was a young parent. I was just a kid with a camera.
Photography has been a hobby of mine for over 60 years, and now Lightroom is becoming my auxilliary memory. I really like how digital images now have time, date, locations, camera and lens information, GPS locations and directions. I find not having that information with older film images is mildly distressing. When you're a young parent you can't imagine not remembering every detail of your childrens lives, but the reality is that it is not exactly true after 40 or 50 years.
I probably used a Mamiya Sekor 500TL SLR for those B&W images of my son with just window light, ( or light coming through screen wire or an open garage door ). As a young parent still in post graduate training I was lucky to afford a camera and some Tri-X, I couldn't begin to afford studio lights or modifiers. - I bought the Tri-X in 50 or 100 foot rolls, and souped it myself. I did have a 35mm Durst enlarger that I used for printing in my garage. I wish I could say I have a lot more of good images, but they are mostly snapshots only a parent really appreciates. I stil have some more negatives that have never been scanned, so I might find another image along the way.
The color image of my younger son was shot by windowlight with transparency film, probably with an Olympus OM-1 - I had begun working by then and was actually receiving a very modest paycheck.
I do have some older images of my ancestors as young children that I have been scanning and tidying up a bit, that I rather enjoy. I think I enjoy them because I NEVER knew them as a child - they were my my parents generation or earlier. This is an image of my mother's brother, my uncle, sometime near 1918 or so - small image ( maybe 2 x 3 inches or so originally ) scanned and uprezzed in AI Gigapixel and tidied up with the clone tool in PS, not greatest but presentable, no longer with the fold through the bottom half of the image
And this is my great grandfather photographed about 1872 - this file is a scan from an image barely 2 inches long and badly discolored, but it is an image of my mother's mother's father at about age 2 or 3 - I left the sepia color since that is what the color of the original image was - again uprezzed in AI Gigapixel, and a much better image than I started with, and now no longer threatened by time and chemical degradation.
Here is a frame of me shot on 828 size Kodachrome during WWII. - the Kodachrome was probably purchased in Mexico by my father who was stationed at Fort Sam Houston. I am maybe a 14 months old. Not a great image, except that I still possess the blue rocking horse that my father made for me out of packing crates. I like the dog and the stacked lumber in the background, Fort Sam Houston was a very busy place then. Shot on 828 film, some of the best images my father ever made, and the Kodachrome color is still great, not faded nor drifted.