Conversation so far:
When did Murray Rothbard get married?
He got married in 1953.
Who did Murray Rothbard marry?
He married JoAnn Schumacher (1928–1999), whom he called Joey, in New York City.
How long did Murray Rothbard and Joey stay married?
They were married from 1953 until his death in 1995.
How did JoAnn Schumcacher die?
Hwere did Murray Rothbard work?
According to Joey, patronage from the Volker Fund allowed Rothbard to work from home as a freelance theorist and pundit.

Question: How long did he work there?
Self-contained rewrite: How long did Murray Rothbard work from home?