Henry Mosler was born in Silesia.
Mosler immigrated to New York City with his parents and siblings in 1849.
Early 1850s, the Mosler family moved to Cincinnati, Ohio.
Mosler studied drawing and painting under James H. Beard in Cincinnati. (dates approximate)
Mosler received a rejection letter from Editor John Bonner at Harper’s Weekly for his sketch of Major Anderson. Bonner explained, "Our space is fully occupied with war pictures." He encouraged other submissions and offered a fee of $25 per page.
"Divine Service at Camp Denison, Ohio" published in Harper's Weekly.
Henry Mosler received a letter of introduction from John Bonner, editor of Harper's Weekly. This letter identified Mosler as an artist-contributor dispatched to Kentucky (or Missouri) to produce sketches.
Mosler was issued a railroad pass to travel from Cincinnati to East St. Louis.
Harper's Weekly published Mosler's “Departure of the First Ohio Zouave Regiment from Cincinnati for Western Virginia”
Mosler published “Camp of General Rosseau’s Brigade, near Muldraugh’s Hill, Kentucky” in Harper's Weekly.
