Right out of the catalog
I don’t believe there is a book on the subject of Plymouth Owner’s Clothing Dos and Don’ts, but if there were, it probably would have been the Montgomery Ward men’s catalog Spring and Summer 1961. On the left is Mr. Page 117 and on the right is Mr. Page 130. If they were 20 years old here, both would be in their mid seventies now. And Mr. Page 130 probably still has those pants.
Their car is fairly new based on the one parked in front of it (early 60’s Chrysler product) and the one in the distant driveway (mid 50’s era Ford, I believe). This one is a 1962 Plymouth Fury Convertible if you must know.