![Historic Photograph of NSA and its Predecessor Organizations; See image description for specific information](https://media.defense.gov/2019/Mar/08/2002098205/104/78/0/190307-D-IM742-1166.JPG) | HIST-026-018 | B III Colonel Bearce; Captain Mo Klein |
![Historic Photograph of NSA and its Predecessor Organizations; See image description for specific information](https://media.defense.gov/2019/Mar/08/2002098206/104/78/0/190307-D-IM742-1167.JPG) | HIST-026-019 | B III Colonel Bearce |
![Historic Photograph of NSA and its Predecessor Organizations; See image description for specific information](https://media.defense.gov/2019/Mar/08/2002098207/104/78/0/190307-D-IM742-1168.JPG) | HIST-026-020 | B III Colonel Bearce |
![Historic Photograph of NSA and its Predecessor Organizations; See image description for specific information](https://media.defense.gov/2019/Mar/08/2002098208/104/78/0/190307-D-IM742-1169.JPG) | HIST-026-021 | "B" III Colonel Bearce; Lieutenant D. L. McCarthy, Lieutenant Colonel Frank Rowlett's office |
![Historic Photograph of NSA and its Predecessor Organizations; See image description for specific information](https://media.defense.gov/2019/Mar/08/2002098209/104/78/0/190307-D-IM742-1170.JPG) | HIST-026-022 | B III Colonel Bearce |
![Historic Photograph of NSA and its Predecessor Organizations; See image description for specific information](https://media.defense.gov/2019/Mar/08/2002098210/104/78/0/190307-D-IM742-1171.JPG) | HIST-026-023 | B III Colonel Bearce |
![Historic Photograph of NSA and its Predecessor Organizations; See image description for specific information](https://media.defense.gov/2019/Mar/08/2002098211/104/78/0/190307-D-IM742-1172.JPG) | HIST-026-024 | B III Colonel Bearce |
![Historic Photograph of NSA and its Predecessor Organizations; See image description for specific information](https://media.defense.gov/2019/Mar/08/2002098212/104/78/0/190307-D-IM742-1173.JPG) | HIST-026-025 | B III Colonel Bearce |
![Historic Photograph of NSA and its Predecessor Organizations; See image description for specific information](https://media.defense.gov/2019/Mar/08/2002098213/104/78/0/190307-D-IM742-1174.JPG) | HIST-027-001 | B Branch Captain Patton; Miss Smith |
![Historic Photograph of NSA and its Predecessor Organizations; See image description for specific information](https://media.defense.gov/2019/Mar/08/2002098214/104/78/0/190307-D-IM742-1175.JPG) | HIST-027-002 | B Branch Captain Patton; Mrs. Albert |
![Historic Photograph of NSA and its Predecessor Organizations; See image description for specific information](https://media.defense.gov/2019/Mar/08/2002098215/104/78/0/190307-D-IM742-1176.JPG) | HIST-027-003 | B Branch Captain Patton |
![Historic Photograph of NSA and its Predecessor Organizations; See image description for specific information](https://media.defense.gov/2019/Mar/08/2002098216/104/78/0/190307-D-IM742-1177.JPG) | HIST-029-001 | B-I Branch Colonel Aurell; Dr. Nelson (front, right) |
![Historic Photograph of NSA and its Predecessor Organizations; See image description for specific information](https://media.defense.gov/2019/Mar/08/2002098217/104/78/0/190307-D-IM742-1178.JPG) | HIST-029-002 | B-1 Branch Colonel Aurell |
![Historic Photograph of NSA and its Predecessor Organizations; See image description for specific information](https://media.defense.gov/2019/Mar/08/2002098294/104/78/0/190307-D-IM742-1179.JPG) | HIST-029-003 | B-1 Branch Colonel Aurell |
![Historic Photograph of NSA and its Predecessor Organizations; See image description for specific information](https://media.defense.gov/2019/Mar/08/2002098272/104/78/0/190307-D-IM742-1180.JPG) | HIST-029-004 | B-1 Branch Colonel Aurell; Meredith Gardner |