She became a religious figure of sorts but when Louise Feltin was born in 1830, she lived a fairly ordinary life. She was educated at Geispolsheim and La Walk. By the age of nineteen, she entered a convent. It was the Sisters of Divine Providence home which was originally discovered by Jean Martin Moye.

Louise Feltin, soon recognized as St. Andrew Feltin, would become well known for her religious duties. She was sent to Austin, Texas to set up the first parish school in the state of Texas. In 1867, the school opened. However, Louise wouldn't remain there. She would be asked to serve in Castroville and soon she would move there to begin her new work.

Louise Feltin worked diligently from 1870 until 1878 advising others on the opening of more Texas schools. However, she would resign from her position of authority as a mother superior in 1886. She would soon put on her religious attire again. Once she took on the religious habit once more, Louise Feltin would serve as a religious servant until her death in 1905.

At that time, Feltin was recalled for her hardships and dedication to serve for religious purposes. Those elements would later become the legacy that she would ultimately leave behind.