Can you describe your dad a bit? What are some of his hobbies? Why does he enjoy doing the things he does? What are his pet peeves? What's his style of communicating?
My dad is elderly now and has alzheimers but we had our issues growing up which I am trying to make peace with through MBTI.
I tend to lean towards him being an ISTJ but maybe he was a weak T?
In his teens and young adult years he was very much into going to hear live music (swing, big band), he was on a swim team, he liked to drink, he was extremely shy and even quit college because he had to give a speech. He had very bad social anxiety. He was in WWII and very patriotic (but who wasn't from that generation). He was a civil war buff and interested in all wars from then on as well.
He had that work before play work ethic. He had systems for doing things whether is was recycling, yardwork, etc. He was hands off father but provided the right environment for kids to play; had built in swimming pool built, made a basketball court for boys, bought additional property so kids could play baseball, when I got into horses moved to country and bought me 3 horses, etc.
I guess problem I had with him was his control issues over my mother, sometimes bordering verbally abusive, and his drinking. Even he was controlled with that and only drank Friday nights so he could run the family business during the week.
I never saw him express affections toward mom or kids verbally but as I said showed us through providing gifts and fun home environment.
Emotionally, he was always under control until he blew his stack on rare occasion. Never ever guilt trips or emotional manipulation were laid on us. He was blunt or had an expression of disdain when frustrated with kids.
He never socialized with friends but all our family gatherings centered around family.
Finally, I think he was a bit OCD in some areas such as leaves. In the fall he would rake everyday and get mad if one leaf fell on the ground. He didn't like any dirt, grass or leaves on the surface surrounding the pool either. Everyday he had to spray down the cement and get all the debris off before he went swimming.