Marglobe was credited with nearly single-handedly saving the Florida tomato industry in the early part of the 20th Century. Marglobe is also historically significant in that it was a parent of many other later tomato varieties.
From Tatiana’s TOMATObase:
Developed in 1917 by Fred J. Pritchard of the United States Dept. of Agriculture by crossing Globe and Marvel, the latter being a European development. Released to the public in 1925.