war machine

avengers question

hello all(who have stuck around despite my silence)!

i'm getting into Avengers these days :D are any of my HP friends in this fandom? if so, maybe you can answer a question for me...

how is it that howard stark, who appears to be in his early 30s in 1941, manages to have a son who is in his 40s in the present day? that would mean that tony was born in the mid-60's, at which point howard stark was 50 to 60 years old. i assume tony's mother is about the same age. is this just movieverse creators fudging the timeline?