"This was the first mission of the Sisters of Charity in Colorado. They opened the school, St Joseph's Academy, on March 4, 1870. St. Joseph's Academy, the convent school of the Sisters of Charity, was doing very well with one hundred twenty-three public school students and twenty-two in the select and boarding school. The Mother Superior of the order was Sister Marcelline." Quote taken from "Trinidad Colorado Territory" by Morris F. Taylor.
In the Aultman Collection of photos there is a listing of a Sofa Abrean, dated 1890. It could just be a misspelling. The call number is.....511. You can obtain this photo by contacting the Stephen H. Hart Library in Denver, Co. 303-866-2305. I can't say for sure that this is the woman that you are doing research on, but you can decide on that.
If you give me a couple of days I think I have a listing of some of the graduates from St. Joseph Academy during that time era, and possibly more information.
My grandmother also went to that school.