Career
Johl’s stamp collecting interests consisted of 20th Century postage stamps of the United States. Along with Beverly Sedgwick King, he co-authored “United States Postage Stamps of the Twentieth Century” (Volume(s) 1, 1932. Volume(s) 2, 1934). Company-author Beverly King died in 1935, and Johl continued the work on “United States Postage Stamps of the Twentieth Century” and completed volume 3 in 1935 and volume 4 in 1938.
He revised and enlarged volume 1 in 1937.
In 1947 he published his work “The United States Commemorative Stamps of the Twentieth Century, 1902-1947” in two volumes. Johl served as an officer at the Collectors Club of New York and was an officer and judge at CIPEX (Centenary International Philatelic Exhibition) in 1947.