He was member number 1 of the American Vecturist Association and founder of the California Association of Token Collectors in 1957.

Atwood assembled a collection of 6000 transportation tokens. It was sold in 1961 with 75 percent going to Harold Ford and 25 percent to John M. Coffee, Jr. Author of Catalogue of United States and Canadian Transportation Tokens in 1958.

An early checklist of transportation tokens was produced by F. C. Kenworthy in March 1920. In March 1925 he passed on the project to R. W. Dunn who published a list in 1932. He passed on the project to Atwood. Atwood's list was serialized in Keim's Hobby News beginning in 1942. In 1948 the Atwood check list was published in loose leaf form. The list became the first edition of Atwood's Catalogue in 1958. A second edition was published in 1963. Compilation of the third edition was done by committee with John M. Coffee as editor. By the fourth edition the title was changed to the Atwood-Coffee Catalogue by Coffee and Harold V. Ford.

He died in Santa Monica, California.

obit: CW 2/29/1984 DOB:SSD