From "A History of Pipestone County", July 1984, written by the Pipestone Co. Historical Society:
Max Peter Lorenzen was born in Germany in 1868 and married Emma Arp, also of Germany, who was born in 1870. He lived in Elmer Township for 22 years. He died in February 1923 at age 53. She died Sept. 21, 1957. Emigrated 1887, naturalized 1892.

Pipestone County Star, Feb. 13, 1923:
Peter Lorenzen, a well known farmer of the southern part of Pipestone county, died at 2:30 o'clock Saturday afternoon in a hospital at Rochester, to which place he had been taken for treatment for injuries sustained when he fell from the hay loft of his barn on Thursday afternoon. He fell a distance of eight feet to the floor of the barn and was injured about the head in such a way that he did not regain consciousness after the accident. What caused him to fall is not definitely known, but some are of the opinion that he had a stroke or apoplexy. He was found within an hour after the accident and his condition was at once seen to be critical. He was taken to Rochester and his death occurred a few hours after his arrival there. The remains were brought from Rochester Sunday night, and taken to the home in Elmer township. It is understood that the funeral will be held on Wednesday, and burial will be in the Trosky cemetery. The late Mr. Lorenzen was fifty-three years of age and had been a resident of Pipestone County for 22 years, owning and occupying a farm about four miles southeast of Trosky. He is survived by his wife and 10 children, to whom many friends extend sympathy in their sad loss.

Obituary from Traer Star-Clipper, February 16, 1923:
Peter Lorenzen, farmer near Trosky, Minn., son of Henry Hans Lorenzen and Christina Margaret Carstensen Lorenzen, of Traer, and well known in north Tama, died in the hospital at Rochester, Minn., at 5 o'clock last Saturday evening from injuries received in a fall from the hay loft of his barn to the cement floor below. The nature of his injuries was not made known in the telegram received by relatives here. The tragedy occurred while doing his chores early Friday morning. He was rushed to Rochester in the hope of saving his life, but early Saturday evening a telegram brought new of his death.

Mr. Lorenzen would have been 54 years old in March. He has lived in southwestern Minnesota twenty-five years or more. He married Miss Emma Arp of Tama County, who with twelve children survives. Three of the children are married. A daughter lives in South Dakota and a son and daughter near Trosky. Most of the single children are at home. The youngest is thirteen. Besides the aged mother in Traer, Mr. Lorenzen is survived by three brothers, Thomas, Traer; John, Toledo; and Henry, St. Paul, Minn.

The funeral services and burial were at Trosky Wednesday afternoon. Six of the north Tama relatives left for Trosky Monday, to remain until after the funeral - the brothers, Tom, John and four cousins, Peter Tams, Peter Krutzfeldt, Clutier; Herman Arp and John Lorenzen, the latter of Denver, Iowa.

Found in the 1895, 1900 censuses at Oneida, Tama, Iowa:
1900: Peter Sorensen 31, Emma Sorensen 30, Edna C Sorensen 8, Alma C Sorensen 6, Herman J Sorensen 5, Albert C Sorensen 3, Max Walter Sorensen 3/12, James Sniberg 14.

Found in the 1905 - 1920 censuses at Elmer, Pipestone, MN:
1910: Peter M Lorenzen 41, Emma D Lorenzen 40, Edna C Lorenzen 19, Alma C Lorenzen 17, Herman C Lorenzen 14, Albert J Lorenzen 13, Walter M Lorenzen 11, Frank H Lorenzen 8, Viola M Lorenzen 5, Clara L Lorenzen 2, Herbert P Lorenzen 6 mos, Adala E Lorenzen 6 mos.

1920: Peter M Lorenzen 50, Emna K Lorenzen 49, Viola M Lorenzen 15, Albert J Lorenzen 22, Walter M Lorenzen 20, Frank H Lorenzen 18, Clara L Lorenzen 12, Adella E Lorenzen 10[10 3/12], Herbert P Lorenzen 10[10 3/12].