He was born in Chatfield, a community south of Rochester, MN. He worked his way through Carleton College in St. Paul and was outstanding in debate and oration.
Rossman was acquainted with Grand Rapids through his brother Willard, who had established a law practice here. They visited frequently. Laurence (Larry) also worked for the Grand Rapids newspapers for a few summers.
In 1914, he bought one half interest in the Herald from its founder Edward C. Kiley, who moved from Duluth to establish the paper in 1894. The paper became the present day Herald Review.
The Herald Review was named