Not a dwarf but a compact early is Cowberian.
It's one of my tomatoes. Originally it was supposed to have been Siberian. But another grower from your area knew it wasn't right for the type. But he loved it because it was 1 of only a few that ripened for him. He named it in honor of my state, Wisconsin.
Red, early small (2-4 oz), compact plant but I'm not sure if it's I or D.
Carol
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