Looks like all the addresses have changed on the street.
31 Savin Hill Ave is now 24. Was this the first honey trap house used by the CIA? 1967 was a few years after JFK assassination and the rise of the CIA directed by Bush Sr.
Also not sure of the connection with Juan O Savin (107?)
Is it a reference to 10 Savin Hill Ave, (or since you drop the zero)
Is it a ref to 1 Savin Hill Ave (which is now Pleasant View Market)?

10 Savin Hill Ave is now 11, since the street addresses were changed. Was 1 or 10 Savin Hill Ave the home of someone who lived on that same street back in the day?

What does all this mean?
I have no idea.

Only people mentioned by @VeeW in this post can reply

Christ Follower, Army Brat, Formerly Penpoint777, https://gettr.com/user/veronicawallace

In response Vee Wallace to her Publication

EDIT: 10 Savin Hill didn't appear on the map search, but 11 did. But Zillow has a listing for 10. Either way, the addresses are off for the houses on this street.