He was 26 years old when he emigrated to the United States with his brother Franciscus, leaving Havre, France 15 May 1910 on the S.S. St. Paul, arriving in New York on 22 May 1910. He listed his place of birth as Tannesberg, Slovenia (German for Tanca Gora) on the ship's manifest. ®2856 In 1907 he was a miner and boarded with his brothers Joseph Matkovich and Martin Matkovich at the home of John Tomachich, (his brother-in-law) in Ely, Minnesota. In 1910 he boarded with his brother Martin Matkovich’s family in Virginia, Minnesota and was employed at Virginia Mine, where he worked as a miner in the Bessemer iron mine. In 1912 he was a trammer at the Norman iron mine and boarded with the Joseph Matkovich family and his brothers Frank Matkovich and Peter Matkovich at the Commodore location, Virginia, Minnesota. He returned to Tanca Gora, Slovenia, by 1913, at least 9 months before the birth of his third child, Anton II, who was born on 4 January 1914.

Did he inherit the farm at Tanca Gora and died in a Russian prison during World War One? His last child was born in 1918.
Check passenger lists to Slovenia ca 1913.
How can Anton have immigrated in 1910 and in 1907 be a boarder in Ely? May be the other Anton Matkovich of the other family.