Alfred T. Andreas (1839-1900) was a tour de force when it came to commercial cartography and promotion. He built a sales machine that had agents crisscrossing the states he intended to map, selling subscriptions in return for portraits being placed in the back of his atlases. Andreas was especially active in the Upper Midwest; he was responsible for state atlases of Minnesota (1874), Illinois (1876), Wisconsin (1878), and Iowa (1875).
Ristow says of Andreas' plans for future state atlases:
ANDREAS anticipated that the Minnesota volume would be the first in a series of illustrated state historical atlases. As soon as his surveyors and canvassers had completed their work in Minnesota, they were accordingly shifted to Iowa to begin work on an atlas there. Procedures for preparing the Iowa atlas and for soliciting subscriptions and contracts for illustrations and biographical sketches were the same as for the Minnesota volume.