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![45th Infantry: Troop B, 1st Oklahoma Cavalry on Broadway](https://metro-archive-files.s3.us-west-2.amazonaws.com/image/2020-03/017a%20WWI%20Trp%20B%201st%20Okla%20Cav%20on%20West%20Brdwy%20OKC%201917.jpg)
45th Infantry: Troop B, 1st Oklahoma Cavalry on Broadway
Troop B, 1st Oklahoma Cavalry on West Broadway, OKC
![45th Infantry: NCO's of Troop B, 1st Oklahoma Cavalry](https://metro-archive-files.s3.us-west-2.amazonaws.com/image/2020-03/019a%20WWI%20Trp%20B%201st%20Okla%20Cav%20NCOs%20wearing%20Mills%20Type%20cartridge%20belts.jpg)
45th Infantry: NCO's of Troop B, 1st Oklahoma Cavalry
NCO's of Troop B, 1st Oklahoma Cavalry wearing Mills type cartridge belts
![45th Infantry: Officers and NCO's of 1st Oklahoma Cavalry Unit](https://metro-archive-files.s3.us-west-2.amazonaws.com/image/2020-03/020a%20WWI%20Trp%20B%201st%20Okla%20Cav%20Off%20and%20NCOs.jpg)
45th Infantry: Officers and NCO's of 1st Oklahoma Cavalry Unit
Officers and NCO's of 1st Oklahoma Cavalry Unit
![45th Infantry: Cpt. Harrah of 1st Oklahoma Cavalry](https://metro-archive-files.s3.us-west-2.amazonaws.com/image/2020-03/018a%20WWI%20Trp%20B%201st%20Okla%20Cav%20CPT%20Harrah%20wearing%20gas%20mask.jpg)
45th Infantry: Cpt. Harrah of 1st Oklahoma Cavalry
Cpt. Harrah of 1st Oklahoma Cavalry wears a gas mask
![45th Infantry: Oklahoma National Guardsmen dressed in Regalia](https://metro-archive-files.s3.us-west-2.amazonaws.com/image/2020-03/022a%20WWI%201st%20Bn%20142%20Inf%2036th%20Div%20Camp%20Bowie%20TX.jpg)
45th Infantry: Oklahoma National Guardsmen dressed in Regalia
Oklahoma National Guardsmen dressed in regalia just before deployment overseas
![45th Infantry: Officers of the 111th Engineering Regiment](https://metro-archive-files.s3.us-west-2.amazonaws.com/image/2020-03/015a%20WWI%20Co%20F%20111th%20Engr%20Regt%20Officers.jpg)
45th Infantry: Officers of the 111th Engineering Regiment
Officers of the 111th Engineering Regiment