Karl's children by Johanna were born after the publication of the two Logan papers. They also would have helped in the office of the Advertiser.
Karl describes the printing business in his letter to his father in Berlin, dated 23 November 1921.
In my office, things are also going well. Our work includes mostly legal work, school business, book and newspaper printing. We print three newspapers for the local high schools and that keeps us rather busy. Early next year my oldest boy will go to Indianapolis Trade School to take a pressman course. It is approximately 2000 miles east of here. It is the largest graphics school in the country and as soon as the others are old enough I will send them also to receive a technical education. We have just now purchased three new machines. They are an electric lead melting kettle for the Linotype machine, an electrical "Run sage," and a stereotyping machine. All the children help out at the office, then I have some grand ideas running around in my head. Before I close I must say that we have a daily newspaper here that is currently being prepared, in English naturally. Everything requires much money, work and patience and I don’t want my young boys to cover the same ground but rather build from where I leave off.
Kowallis family taken at funeral of Karl August Kowallis