Yep 1st and 2nd Brigade consolidated in 1991.
https://njmilitiamuseum.org/unit-lineages/50-infantry So 50 th Armored division would have 2 Bdes at the time looked like this:
50th AD in 1991
1st Bde
2-103rd Armor
3-103rd Armor
2-113th infantry
1-114th Infantry
36th Bde
7-112th Armor
8-112th Armor
????
4-156th Infantry