Over Here – Over There began (in the few papers that started it on time) on April 6 1927, exactly ten years after the U.S. entered the war. And for the few papers that stuck with the series to the bitter end, the feature ended on September 29 1928, a decade to the day after the armistice was signed. In the interim Henderson described the war in exacting detail over the span of 407 comic strip installments. The strip was syndicated by the Register & Tribune Syndicate.
Those good with dates will wonder how the number of strips meshes with the start and end dates. There should be a total of 465 strips if the series ran continuously. Unfortunately I don’t have a satisfactory answer to that because I have had no luck finding a paper that started the strip on time and stuck with it until the end. My information is cobbled together from several different papers (specifically, the Oakland Tribune, the Jackson Daily News, the Nashville Tennessean), none from which I have a complete unbroken run. My best guess is that the strip took occasional vacations during its run.
Ernest Henderson was starting on his next comic strip brainchild, Flying To Fame, three months before Over Here-Over There ended.