He also became friends with John Henry Twachtman and joined the circle of American-born artists who associated with Frank Duveneck in Munich and the Bavarian town of Polling.
Between 1879 and 1881, Ulrich was back in the United States, where he made a study of the methods used by artists during the Golden Age of Dutch painting; especially the interiors of Pieter de Hooch and Jan Vermeer and the portraits of Frans Hals and Anthony van Dyck.
A notable work from this time was In the Land of Promise (1884), showing an immigrant in the reception station at Castle Garden.
[1] In the summer of 1884, Ulrich returned to Europe; travelling with William Merritt Chase and Robert Frederick Blum.
Blum concentrated on scenes from everyday life, while Ulrich continued to focus on social commentary; including paintings done from sketches made in an orphanage.