lillianereeves

Looks like Bo Sweeney. I started a Wikipedia entry for him: en.wikipedia.org/wiki/Bo_Sweeney

Yup, Bo Sweeney was assistant Secretary of the Interior from 1914, native of Missouri, resident of Seattle. He died 1917, from heart problems.

It sure does appear to be Bo Sweeney. Thanks to both of you.

Another photo by CLINEDINST in the Bain/LOC series:

Bo Sweeney married the former Lillian E. Reeves (1880-1929) on February 2, 1898. She was the daughter of Mr. and Mrs. W. L. Reeves of Trinidad, Colorado.[1]

Bo Sweeney (1862-1917) was a lawyer, and a state representative (D) in Colorado, before moving to Seattle. [2]

A photo of Mrs. Sweeney is in the Bain / LOC Collection on Flickr:



 
Information cited in this comment does not comport with the Wikipedia reference given in the comments.

" HE IS JUST SECRETARY BO
Sweeney of Interior Department
Doesn't Even Care for "Mister"

WASHINGTON, DC, June 23, 1914" – The New York Times

If Bain published this photograph ca. 1910-1915, it may have been in relation to the appointment of Bo Sweeney in 1914 as Assistant Secretary of the Interior.

This is a photograph of the former Lillian E. Reeves (1880-1929) who married Bo Sweeney on February 2, 1898. She was the daughter of Mr. and Mrs. W. L. Reeves of Trinidad, Colorado.[1]

Bo Sweeney (1862-1917) was a native of Missouri, practiced law and was a state representative (D) in Colorado, before moving to Seattle. He served as an assistant Secretary of the Interior with Secretary Lane from 1914 to 1917. Bo died suddenly of a heart attack in Washington in 1917. [2] [3] [4]

A photo of Assistant Secretary Sweeney is in the Bain / LOC Collection on Flickr:

Magnifique photo