A quote from a wonderful pdf* that Larry found online: (The bold line refers to our Sand line thru Elizabeth, who was Peter's granddaughter, ok?)
"Paul Sand (Nicolas's half brother) was the first to come to America. He left his homeland in 1850 and settled in New York. In 1857 his oldest brother, Peter, arrived in America with his wife, Angelique, and four children. In about 1859 Paul left New York, probably with Peter, and made his way west. Paul Sand and his wife Katharina along with their small son Nick Paul settled near St. Joseph, MN. Peter Sand and his family settled near Sartell, MN. In about 1865 Nicolas Sand joined his half-brothers in America and eventually settled near Meire Grove, MN".
Nicholas married Christine Jacquemain when he was 33 and she was 25. Just guessing why this photo was taken--maybe their 30th anniversary because of his white beard--then this would have been 1897 when he was 63. I still think that beard was actually a white kitten tucked under his chin.