In 1948 Roger received an invitation from the Twenty Club, a discussion group that held regular meetings with special guest speakers, and he was elected to membership in November. For a while he embraced the club’s social potential and became Program Chairman from 1949 to 1950. Similarly, as a result of his consulting position and other connections at Caltech, Roger joined the Athenaeum, a place where individuals known for their scientific, literary and artistic attainments could gather, read or discuss their work.

Roger started another sketchbook in 1947, the first since his time in Africa, which he filled with casual portraits and various desert landscapes. He also began to increase his official involvement with local artistic organizations, starting with the Pasadena Artist Associates, an organization that he continued involvement with to varying degrees for the rest of his life. In addition, he was awarded a patent for a bubble level with a conical lens, a device that he helped to develop during his war work with the NDRC. Roger was still in contact with government research contractors and would be for several more years. He was invited to meetings in Chicago and at the Pentagon as a consultant for many of the subjects he had worked with during World War II.

Aside from a brief critical reference to the many “ism’s” and a tart barb against dianetics, Roger typically steered clear of religious discussion for most of his life, save for a line in a brief biographical sketch in which he listed himself as an “Inactive Unitarian.” Being included in the religious practices of others seems to have made Roger uncomfortable, but he did make occasional mention of a few of his own strategies for dealing with such situations:

“As a Unitarian I didn’t take religion all that seriously. At their meals there were always prayers, and from Phil I learned the short form for these matters, to wit: ‘Good bread, Good meat, Good god let's eat, For Christ’s sake let’s begin.’ This can be used if you happen to be unexpectedly asked to offer the prayer, which for me was always an embarrassment!”