The 2,928-square-foot house was built in 1891. Carolyn McAvoy of McAvoy Realty is the listing agent.
Mr. Allen is a professor of biology at Washington University. He has been with the school since 1967.
He earned his B.A. in biology and English from the University of Louisville in 1957 and his M.A. (1958) and Ph.D. (1966) from Harvard University.
According to BlockShopper.com, there were 28 home sales in Lafayette Square in 2008, with a median sales price of $252,350
Address: 1415 Missouri Avenue
Buyer(s): Griffin Enterprises Llc II
Seller(s): Garland E Allen and Larry J Bennett
Sale date: Sep. 5, 2008