Anna Esser was born at Boonville, Missouri on Jan. 12, 1888. She entered the convent on Nov. 23, 1905 at the age of seventeen, was invested on July 14, 1906 and made profession as Sister M. Annunciata on Sept. 27, 1907. Perpetual vows were made on Jan. 18, 1913. She was a cousin of Sisters M. Imelda and Elfleda.

Sister was a quiet, reserved person, but always pleasant and friendly. True to her name, she had special devotion to our Blessed Mother and the Infant Jesus. For many years Sister served the chaplain and visiting prelates and priests in the priests' dining room. Lacking modern facilities, she had to carry all the food down the long hall on a tray and often had to make several trips back and forth to the kitchen. She did this with great reverence and love for priests, God's anointed ones. Sister was very attentive and precise in ministering to their needs; never ruffled; always kind, patient and dependable. She was very prayerful and fervent in the spiritual life, loved the Divine Office and often repeated excerpts from the psalms.

For many years Sister operated the addressograph— an old model, which made the work laborious and tedious. She was one of the few who escaped the flu during the 1918-1920 epidemic, but later developed an intestinal ailment which sapped her strength and finally caused her death. She underwent surgery, which proved of little avail, and suffered much. After a prolonged and very painful agony she died at the age of fifty-nine on Ash Wednesday, February 19, 1947, just as the community began praying None. Sister had offered to suffer in atonement for sins of excess committed.