About the Green Schwinn I have been reading up apparently they were stolen a lot in 1972 and they had serial numbers that owners would register the bikes to. It would be interesting to know if this bike had a serial number and where it went to.. Some people even had Bicycle insurance.. There a lot of people out there that collect them and tell stories of bikes they had or had and had gotten stolen. I am thinking if there was a serial number on the bike maybe it could possibly be traced to a store or a town or something. It might help with a clue in some way. Its weird I have not read anything anywhere about a bicycle.
Here are some examples that I found
http://www.kurtkaminer.com/TH_paramountregistry.html
1972
C72158
BB #P632
P13-9
ST 61.5cm ctt
TT 58cm ctc
All-chrome
Campagnolo NR
95% original. Appears to be standard production geometry.
Originally purchased by William Green Sr. from unknown shop in West Palm Beach, FL; order originally placed through Mack Cyclery, Miami, Florida. ALL owners listed.
https://www.newspapers.com/newspage/23630136/
this is not from Florida but its from 1972
Steward, acting detective on the Appleton Police Department, wasn't on the street 15 minutes last Tuesday when he spied a young man riding a green, five speed Schwinn pull behind a downtown flat. A quick check of the serial number showed it matched one on Steward's bicycle "hot sheet" -- a notebook containing 20 pages of stolen bike numbers
S t e w a r d questioned the rider of the stolen cycle. He got the same story that's been fed him countless times during the week he had been on the one-man bicycle theft squad. "It isn't my bike. I borrowed it from somebody to ride home last night." The suspect supplied a name that would have to be checked out later. S t e w a r d w heeled the Schwinn to the police station. Enroute, h e stopped to check the serial numbers of eight more bikes. Police department records revealed t h a t the green Schwinn was stolen from in front of a downtown store July 10. It belonged to a Combined Locks resident. The bike had been locked to a friend's bike. The thief broke the lock Call Owner The owner would be called. He would be asked if his insurance company had been notified of the loss. If the owner hadn't been paid by the insurance company, he would get the bike back. If he had been paid, the insurance company might get the vehicle. Many people try to get the bike back and keep the insurance money, too, Steward said. But police try to double check. Bicycle larceny in Appleton is big business, just as it is in cities throughout the nation. And it's getting bigger
here is another one but from Iowa I saw the date of January 5 1972 which got my attention.. I will keep looking
https://newspaperarchive.com/muscatine-wednesday-muscatine-journal-jan-05-1972-p-2/
Bicycle theft Robert McFadden 1523 Lu cas St reported the theft of a green fivespeed Schwinn bi cycle