Citrullus lanatus
2 gram seed package or about 20-25 watermelon seeds
2004 Seed Saver Inventory says...
"Yellow fleshed version of Mountain Sweet which was popular in the 1840's in markets throughout New Jersey, PA and NY, large striped fruit with deep yellow flesh, high sugar content, sweet and tasty, 20-35 pounds."
Mountain Sweet watermelon is mentioned by B.K. Bliss and son of New York in 1870.