[2] Immigrating to the United States as a child in 1828 from County Meath, Ireland, Patrick's family eventually settled in Rochester.

He was with the regiment on the Pine Ridge Agency during the winter of 1890, when it took part in the Wounded Knee Massacre and Drexel Mission Fight.

[1] His next door neighbor on the post was Hugh L. Scott, future Chief of Staff of the United States Army.

He recalled an experience that he had with one child: I have seen a boy from Carlisle, dying from phthisis, compelled to travel in a day coach until unconscious, and then twenty-eight miles in a stage in an effort to get [home] before death, which was accomplished by a few hours.

[6]Glennan believed that returning infected children to the healthy dry atmosphere of the American Southwest as early as possible would give the sufferers "a chance for life."

[7] During a time that organized Native American companies within the army faced staunch criticism by officers, Glennan wrote an article supporting their existence in an 1895 issue of the Journal of the Military Service Institution of the United States.

He acknowledged that not all companies had been successful in nature, with a number of them experiencing a variety of failures, yet "it is time for those who have seen good results to speak of them.

[1][9] With his funeral held on December 27, a number of close associates and friends served as honorary pall bearers, including Major general Merritte W.

Hugh L. Scott recalled that Glennan "was making a collection of Indian curios" and purchased a Kiowa warrior's shield for fifty dollars from him.

Over seventy artifacts representing the Kiowa, Comanche, Apache, Cheyenne, Blackfoot, Pueblo, along with a number of other Native American cultures, are currently housed at the National Museum of Natural History.