Re: Stuck Storm Windows
Have you missed the slide bolt fasteners at the bottom?
Some have a setscrew lock that has to be loosened.
Some have no visible fastening at all but actually have spring=loaded jamb strips that hold the storms open by friction/pressure. I have been working in a house that has these and have not been opened in 35 years. Working them up & down with brute strength got them moving. The aluminum had corroded/fused together. A light well-placed blow to the spring-loaded jamb should free it right away. I only discovered the springiness once they were moving. It's also how you remove the panels on that style.
Remove not the ancient landmark, which your fathers have set.