Theresa was baptized by the Rev. Demetrius Gallitzin of Loretto, Pa. In later life, she lived with the family of her son John.

Matthias arrived in the United States sometime after his half-brother Augustin's immigration in 1833 but before his other half-brother Michael's arrival in 1854. According to the Naturalization Record of "Matthias Farabaugh," dated September 12, 1856, Matthias had been a resident in the United States five years, as sworn by his brother Augustin and an Edward Glap. It further states that he declared his intent to naturalize in a New York City court on January 22, 1849. Because at least two years of residency was required before intent to naturalize could be declared, Matthias probably arrived in the U. S. in 1846. He likely immigrated with his full brother George, who has the identical naturalization history.
Matthias was a farmer who settled with his wife Theresa in Carroll Township, Cambria County, Pa., about three miles west of Carrolltown. On April 9, 1852, Matthias purchased 71 acres in Carroll Township, Cambria County, for $248.50 from "Phebe Hains, widow of the city of Philadephia." The parcel was adjacent to lands owned by Matthias' brother George, a John Cole, and a Paul Strittmatter.
In 1860, "Mathias Farabaugh" was a 40 year old farmer with realty valued at $1000 and personalty worth $500, born in Baden and living in Carroll Township. His wife "Teressa" was a 32 year old, born in Pa.
In 1870, "Mathias Farabaugh" was a 52 year old farmer born in Germany, who could not read or write English, and had realty worth $900 and personalty worth $400, living in Carroll Township. His wife Theresa was a 45 year old "house keeper" born in Pa., who could not read or write English.
In 1880, "Mathias Farenbaugh" was a 58 year old farmer, born in Baden, living in Carroll Township with his 51 year old wife Theresa, a "house keeper" born in Pa.
Matthias was also a stone cutter by trade, and it is recorded that he and three other masons built the retaining wall and stone pavement in front of St. Benedict's Church in Carrolltown, Pa., in 1883. Matthias also placed the relic in the church altar.
Matthias and Theresa Hertzog were married by Fr. Henry Lemke, the founder of Carrolltown, Pa.
His brief obituary in the Cambria Freeman listed his name as Matthew Farabaugh, and indicated he was a stone cutter by trade.
Matthias’ Will of October 5, 1876, bequeathed all of his possessions and a life estate in the 72 acre farm to his wife Teresa, with the farm passing to the children in equal shares upon her death. It further directed that the the inheritance was forfeited should Teresa remarry, but that she would be paid $300 from personal property should that occur.