Bauer struggled to find business after the death of his partner Samuel Sloan and left Raleigh for some time. When he returned he did find work on some of his better-known buildings. While he was working on the Pullen Building  in 1884, he met his wife-to-be, Cherokee Indian Rachel Blythe. The couple had to leave North Carolina to get married, since interracial marriages were illegal in North Carolina at the time.
A few years later, in 1896, Bauer's carriage was struck by a train. He survived, but the trauma gave him continuing psychological issues which ruined his reputation. After Rachel died in 1897, his mental health grew even worse. He constructed an elaborate tombstone for her based on a Grecian temple. Shortly after completing this last project, Bauer committed suicide by shooting himself in the head.
Works (not a comprehensive list)
- Church of the Saviour and Cemetery, jct. of Church and Calhoun Sts. Jackson, North Carolina (Bauer, Adolphus Gustavus), NRHP-listed
- The Academy of Music
- North Carolina Executive Mansion, 210 N. Blount St. Raleigh, NC (Bauer,Gustavus Adolphus), NRHP-listed
- The Pullen Building
- Baptist Female University
- North Carolina School for the Deaf: Main Building, U.S. 64 and Fleming Dr. Morganton, North Carolina (Bauer,Adolphus Gustavus), NRHP-listed
- NC Department of Labor Building 
- First Presbyterian Church (Raleigh, North Carolina)
- Bushong, William B. “A. G. Bauer, North Carolina's New South Architect.” North Carolina Historical Review v.60, no. 3 (July 1983): 304–32.
- Prioli, Carmine A. “The Indian 'Princess' and the architect : origin of a North Carolina legend.” North Carolina Historical Review v.60, no. 3 (July 1983): 283–303.
- William B. Bushong and Catherine W. Bishir (2009). "North Carolina Architects & Builders: Adolphus Gustavus Bauer (1858–1898)". North Carolina State University Libraries.
- A.G. Bauer, Raleigh's Architect
- A picture of the Pullen Building
- A.G. and Rachel Blythe Bauer's graves
- An article describing the graveyard where the couple is buried Archived July 9, 2007, at the Wayback Machine.
- NC School for the Deaf Archived February 27, 2012, at the Wayback Machine.
- NC Department of Labor Building
- Walter Magazine