He was a bare-back rider in the Schumann Circus and performed acrobatic feats for Tivoli Theater in Copenhagen.
Wherever he went, he sketched and painted the Western culture he loved, often selling his work as calendar and magazine illustrations.
His work appeared in Zane Grey's Western Magazine and Hoofs and Horns Archived 2011-06-16 at the Wayback Machine, an honor he shared with fellow cowboy artists including Daniel Cody Muller (1889–1976).
Wieghorst retired from the New York City Police Department in December, 1944, and once again headed west, with Mae and their son Roy.
Over time he became a proficient painter and as a result, Grand Central Art Galleries chose to display his paintings.