The 1891 Denison TX City Directory listed a new member of the Robert clan—Alexander John Robert (1828–1915). Alex was a younger brother of Rev. W.H. Robert Sr. (1821–1900). In 1891, he was principal of Robert Select School for Girls, which he operated in his home at 914 West Main Street. From an educational standpoint, he was well equipped for such a role. He had taken a B.A. degree at Brown University in 1844, attended the U.S. Military Academy at West Point for one year in 1845, then received his A.M. degree at Yale University in 1851. He also had a law degree.  In the Civil War, he had been a Confederate officer in Company E, Georgia 4th Infantry Regiment.   He was promoted to Full 2nd Lieutenant and then to Full 4th Lieutenant on May 10, 1861.  Promoted to Full Adjutant on August 15, 1862

In 1896, Alex still appeared in the Denison City Directory, but he had left teaching and was listed as an insurance agent. He was living at 820 West Bond Street. By 1900, he had moved to Hillsboro, Texas, and was working as a stockbroker; then by 1910 he had retired and living in Spokane, Washington.

Although not all were listed in the Denison city directories, Alex's wife and some of his children were living with him there. He had married May Virginia Simms Robert (1845–1927), seventeen years his junior, in LaGrange, Georgia, in October 1863. A son, Alexander Beale Robert (1878–1950), was listed as a stenographer in 1896; he remained a stenographer and bookkeeper for the rest of his life. Another daughter, Margaret May ("Maggie") Robert Geathard (1880–1975), graduated from Denison's Educational Institute in the Class of 1896. That year, she was a stenographer and bookkeeper at the National Commercial College in Denison; she was a teacher in Hillsboro in 1900, then married and lived in Spokane. It seems likely that Alex's family joined her there.

Several of the children seem to have remained close. Adeline Sterling ("Addie") Robert (1873–1939) was listed in 1891 as a piano teacher and in 1896 as a teacher. In 1900, she was still teaching, but in 1910 she was a Spanish interpreter in Spokane. Also in the household in Denison was son Pierre Robert (1882–1957), who in 1896 was delivering the Dallas News. In 1900, he was a drug salesman, but by 1910 he was a traveling showman, based in Spokane. Later he was a welder helping manufacture airplanes. A baby, Emily Lee ("Emmie") Robert (1890–1966), grew up to be an accountant. So far as is known, these siblings never married. They lived in Spokane; Atlanta, Georgia; and Southern California.