Mortgage Lifter is the name given to a cultivar of tomato developed by Willam Estler of Barboursville, West Virginia, in 1922.
According to many sources on the Internet, the Mortgage Lifter was not developed by Willam Estler.
However, as mentioned above, Byles' and Estler's breeds are distinct cultivars.
The original Mortgage Lifter is known for its mild sweet flavor, and can weigh as much as two pounds (900 g).
Byles' and Estler's cultivars are only the most well-known of a number of Great Depression-era tomato breeds named "Mortgage Lifter".