| Record Group |
Series | Box | Folder Title |
| C-9.1-HLB | 4 | 1 | Letters about Milwaukee Industrial, Dental Clinic, 1921-1924 |
| C-9.1-HLB | 4 | - | Correspondence |
| C-9.1-HLB | 4 | 1 | 1920-1923 |
| C-9.1-HLB | 4 | 1 | 1924 |
| C-9.1-HLB | 4 | 1 | 1928 |
| C-9.1-HLB | 4 | 1 | 1929 |
| C-9.1-HLB | 4 | 1 | 1930 |
| C-9.1-HLB | 4 | 1 | 1931 |
| C-9.1-HLB | 4 | 1 | 1932 |
| C-9.1-HLB | 4 | 1 | 1933 |
| C-9.1-HLB | 4 | 1 | 1934 |
| C-9.1-HLB | 4 | 1 | 1935 |
| C-9.1-HLB | 4 | 1 | 1937-1940 |