These are from the Home Run Derby set. Dawson won the derby in his MVP season of 1987. Sandberg won it as the home town hero when the All Star game was held at Wrigley Field in 1990. Notice the low homer total for each of them. The format was different back then.
I'm a loyal American, but how necessary is it that there be an Independence Day set? Actually, how necessary is it that there are funky uniforms and hats on Independence Day (and Mother's Day and Father's Day and Memorial Day...)