Kroeger was
alderman for the Fifth Ward for the years 1858 and 1859. In 1888, he was nominated for
Mayor of Milwaukee as a Union Labor candidate. Kroeger advocated
public ownership of municipal improvements, the establishment of
public baths and a law permitting the
recall of city officials. His campaign was taken so seriously that the Republicans and Democrats united to run a
fusion candidate against him. He was nearly elected anyway, with 15,033 votes to 15,978 for the "Citizens' Party" candidate,
Thomas H. Brown. Radical
Socialist Labor Party candidate Colin Campbell, backed by
Paul Grottkau (imprisoned editor of the
Arbeiter-Zeitung) garnered 964 votes, just enough to keep Kroeger from winning if they had gone to him instead. In November of that same year, Kroeger was elected to the State Senate as a Democrat for a four-year term to succeed
Republican Julius Wechselberg, with 6,864 votes to 5,070 for Republican A. W. Hill. By the time of the printing of the 1889
Wisconsin Blue Book, however, his party affiliation was listed as "Union Labor". He was assigned to the
standing committees on
public lands and on
engrossed bills. By the time of the publication of the 1891
Blue Book he had returned to the Democratic Party label. He was made chair of the standing committees on
manufactures and
commerce, and was also assigned to the committees on
railroads and
public lands. He did not run for re-election in 1892, and was succeeded by Democrat
Oscar Altpeter. He died in 1916. ==Personal life==