Morton’s Thrift Store was located at 1330-1332 7th Street NW. There are apartments there now, formerly the Immaculate Conception Apartments. The survey says the shop just got glass and smoke damage. However, a Washington Post image has a burned out building on the corner, so it must have been more towards the center of the block, in the current parking lot.
Anyway, in this survey conducted several months after the April 1968 riots, the business was still running and repairs had been made. But by then sales were down 60%. Knowing in general what happened to Shaw I don’t think business got any better.
The owner of Morton’s Thrift Store was Matthew Morton 1721 Jones Bridge Road in Chevy Chase, MD, and he was an African American. At least according to the survey.