George Washington (1789-1797), $525 Million, His Virginia plantation, “Mount Vernon,” consisted of five separate farms on 8,000 acres of prime farmland, run by over 300 slaves. His wife, Martha Washington, inherited significant property from her father. Washington made significantly more than subsequent presidents: his salary was two percent of the total U.S. budget in 1789.
Not him being worth more 200 years after death then most of the current pop girls.