 Seger involved himself with such organization as the Freemasons, Knights Templar, Shriners, Elks, and Royal Arcanum.He later got involved in the city's politics, serving as a member in the Board of Education from 1906 to 1911 and then as mayor of Passaic, New Jersey from 1911 to 1919.During his mayoral term, he served as a delegate to the Republican National Convention in 1916, member of the Council of National Defense during World War I, and president of the New Jersey State League of Municipalities in 1917 and 1918.