Yes, that's apparently a legitimate address.
Bush used it in other latters and forms that we know are accurate.
However, the other "address" that is "blacked out" in the other document IS false: Bush had moved from that street in 1968, several years BEFORE the "memo" was supposedly written in 1972.
Of course, since the memo was actually "typed" this summer, that can be said to be true under all circumstances
In 1972 I worked in the building directly in front of the TANG Headquarters building (Air Force Reserves).
We used standardized letterhead and never used P.O. box addresses. Our address was simply the group headquarters name, and Ellington AFB, Tx. I suspect thier's was something similar.