Schleicher operated a shingle mill he had started constructing shortly after his arrival at Huaco Springs, near New Braunfels, and began, as a surveyor, to help German settlers locate land and to acquire land himself. In 1850 he moved to San Antonio, where he and others initiated the Guadalupe Bridge Company to build a toll bridge across the Guadalupe between San Antonio and New Braunfels, as well as the San Antonio and Mexican Gulf Railway. Together with Gen. Joseph E. Johnston and others he began to build a railroad from Port Lavaca to San Antonio. He was also co-owner of a restaurant in San Antonio and a member of various social organizations such as the Texas State Sängerbund. He was a large man and loved to dance. He became an American citizen on December 8, 1852. In 1853-54 he served in the House of Representatives of the Fifth Texas Legislature. Between 1854 and 1861 he was surveyor of the Bexar Land District, which included most of the area from San Antonio to El Paso, and during his tenure he acquired title to large tracts of land, primarily on the Edwards Plateau. Beginning in 1858, he and his brother-in-law, Heinrich Dresel, published the Texas Staats-Zeitung in San Antonio. Schleicher was a cofounder of the San Antonio Water Company in 1858 and of Alamo College in 1860. From 1859 to 1861 he served in the Senate of the Eighth Texas Legislature.
Although Schleicher allied himself with Democrats such as Andrew J. Hamilton and with Sam Houston in supporting the Union before the Civil War, after secession his contemporaries could see in him "an emphatic advocate of the right and justice of the Secession movement." He became a captain in the Confederate Army, in charge of Gen. John B. Magruder's corps of engineers. He tried and failed to recruit a company of fellow Germans for Sibley's Brigade, and on several occasions he served, rather equivocally, as a character witness for German Texans on trial for sedition. After the war he practiced law in San Antonio, and in 1866 he was one of the incorporators of the Columbus, San Antonio and Rio Grande Railroad. He served as engineer for the construction of the Gulf, Western Texas and Pacific Railway from Indianola to Cuero. He founded the latter town as a way station and moved to it soon afterward, in 1872.
Though he did not solicit the nomination, in 1874 he was nominated by the Democratic party and elected to the United States House of Representatives from the Sixth District. His first act as a congressman was installation of an elevator in the House, but he soon became known for his careful research and well-considered opinions on the reestablishment of the gold and silver standard and his support of protection for the Texas frontier with Mexico. He was a member of the committees on Indian Affairs and Railroads and Canals; in his second term he was also appointed to the Committee on Foreign Affairs. His activities in support of a stable currency gained him a challenger within his own party, John Ireland, and Schleicher had to wage a bitter campaign before being nominated and reelected in 1878. He had not taken office again, however, when he died in Washington, D.C., on January 10, 1879. He was buried with great pomp and ceremony in the National Cemetery in San Antonio. Schleicher County in West Texas was subsequently named for him.
29° 25.295, -098° 28.000
San Antonio National Cemetery