The Personal subseries contains a ten-page biography written by one of Belar's daughters. There is his 25 years of service at RCA certificate and dinner program from 1953, as well as his certificate from Sigma Xi. In 1966 upon Belar's retirement he was given a retirement farewell booklet containing many letters from colleagues reflecting on their careers together and wishing him well in retirement. There is a report titled "The Herbert Belar Electron Bugle report" which appears to be humorous in nature, bound like an official report, but intended as a joke. In 1968 RCA celebrated its 25 Anniversary of RCA Laboratories with a commemorative book. The book was sent to Belar with a thank you letter from the RCA President Jim Hillier and Vice President, George Brown. There are two recordings on reel-to-reel, one is of Christmas Carols, and the other is children voices and was re-recorded from a wire recorder. The latter is dated between 1945 and 1948. There is one phonographic record, an RCA Red Label of Claude Debussy's Clair de Lune, recorded in 1947.