By 1919, Timmins was working with the Charles Everett Johnson (CEJ) Advertising Services Company.  CEJ was a full service firm started by the eponymous illustrator.  CEJ had an astonishing stable of artists, as demonstrated in the ads below.  One CEJ illustrator not mentioned in the ads was a young Roy Spreter.  One of Haddon Sundblom’s first work experiences was with CEJ, apprenticing by day while attending art school at night. Importantly for Timmins, he worked closely with Frank Young while at CEJ.  The two probably knew each other prior to the CEJ years, but while at CEJ they shared close contemporary work experience. 

CEJ continued to exist as a stand-alone studio for only a year or two after Timmins began working there.  In 1921, CEJ merged with Bertsch and Cooper under the latter’s name.  The existence of ad service companies was often mercurial in this period – the loss of key talent and associated clients was often an unrecoverable event.  And the talent moved around – often to form its own studio.  Timmins continued to work with the Bertsch entity until the formation of Young & Timmins.  Harry’s work for CEJ can be identified by the “J” symbol beneath his signature.  His work for Bertsch can be identified by a penant symbol beneath his signature.