Herbert Vogel built an enormous collection of contemporary art along with his wife Dorothy. He was a postal clerk and his wife a librarian. Together they collected over 5,000 works.
They built an enormous collection of contemporary art on a his salary as a postal worker. They lived on what she earned as a librarian at the Brooklyn Public Library. Together they amassed over 5,000 works. They donated all their work to the National Gallery of Art in Washington and to galleries in all 50 states.
A wonderful documentary was made about them and you can borrow it from the library.