Pegasus Corporate Office

Right click new tab and go on Google Maps to Pegasus

It says "Pegasus Corporate Office" on 3521 13th Street.

Click the street view and you'll see the brown bricked building directly behind Pegasus in the alleyway. But this house is 3519 13th Street so Pegasus Corporate Office must be the first door of the red bricked house to the left because the third door along says 3525.

From memory Pegasus always came up on Google Maps as the actual museum itself. Why has it changed? and why is it the address wrong?

I looked into 3521 and found two elderly Catholic sisters/teachers from Washington School for Girls Mary B. Bourdon and Eileen C. Reid live there. They have a connection to Religious of Jesus and Mary who do charity work in Haiti and other places.

Not sure what to make of any of this.