Brenda Watson posted photos found a photo album belonging to Andrew Black of Indiana.

Among those photos was a photo of Dr. Luther S. HIRT, MD:
http://www.ancientfaces.com/research/photo/361690

Dr. Luther S. Hirt and his wife, EllenHoskins, had no children, however I did a Census search and came up with the following, hoping it will help some of you researching descendants of his siblings, if any:

1870 US Census
Centre Point P.O., Cass Township, Clay County, Indiana
Series: M593 Roll: 304 Page: 41
July 19, 1870
DWELLING 813/FAMILY 814
HIRT, Alfred, 29, m, w, farmer, Switzerland
HIRT, Mary M., 29, f, w, keeping house, Ohio
HIRT, Jacob F., 1, m, w, Indiana
BEAR, Henry, 9, m, w, Ohio

1880 US CENSUS
Ward 2, Greencastle, Putnam County, Indiana
Series: T9 Roll: 306 Page: 481B
June 3, 1880
Washington Street
DWELLING 87 / FAMILY 85
HIRT, Alfred, w, m, 39, married, staves and heading, Switzerland, Switzerland, Switzerland
HIRT, Nancy J., w, f, 36, wife, married, keeping house, Penn, Penn, Penn
HIRT, Jacob, w, m, 11, son, single, at school, Indiana, Switzerland, Ohio
HIRT, Sallie A., w, f, 7, daughter, single, Indiana, Switzerland, Indiana
HIRT, Luther S., w, m, 5, son, single, Ind, Switzerland, Indiana
HIRT, Sinipsen A., w, m, 4, son, single, Indiana, Switzerland, Indiana
HIRT, Mary, w, f, 1, daughter, single, Indiana, Switzerland, Indiana
GRAY, Mary, w, f, 75, Mother-in-law, widow, at home, Penn, Penn, Penn
Parker, Anna, w, f, 20, servant, single, servant, Indiana, Indiana, Ireland

1900 US CENSUS
Ward 1, Brazil, Clay County, Indiana
Series: T623 Roll: 363 Page: 32
E. Main Street
DWELING 413/FAMILY 421?
HURT, Luther S. (roomer), w, m, Aug 1874, 25, single, Indiana, Switzerland, Pennsylvania, physician

1910 US CENSUS
Ward 1, Brazil township, Clay County, Indiana
Series: T624 Roll: 343 Page: 36
April 20, 1910
DWELLING 181/FAMILY 186
HOSKINS, Eve E. (head), f, w, 76, widow, Pennsylvania, Pennsylvania, Pennsylvania, own income
HOSKINS, Alice, J. (daughter), f, w, 57, single, Illinois, Indiana, Pennsylvania, teacher, public school
HOSKINS, Florence E. (daughter), f, w, 54, single, Iowa, Indiana, Pennsylvania, none
HOSKINS, George E. (son), m, w, 39, single, Indiana, Indiana, Pennsylvania, clerk, dry goods
HIRT, Luther (Mother in law) [son-in-law], m, w, 35, married (once) for 8 years, Indiana, Switzerland, Switzerland, physician, general practice
HIRT, Ellen (daughter), f, w, 36, married (once) for 8 years, 0 children-0 living, Indiana, Indiana, Pennsylvania, none

1920 US CENSUS
Precinct 5, Brazil Township, Clay Countym, Indiana
Series: T625 Roll: 424 Page: 221
January 2, 1920
44 Maine Street, Brazil, Indiana
DWELLING 11/FAMILY 11
HOSKINS, Eva Ellen (head), m [f], , w, 85, Wd, Pennsylvania, Pennsylvania, Pennsylvania, none
HOSKINS, Florence (daughter), f, w, 62, single, Iowa, Indiana, Pennsylvania, none
HOSKINS, George (son), m, w, 48, single, Indiana, Indiana, Pennsylvania, clerk, clothing store
HIRT, Luther S. (son in law), m, w, 45, married, Indiana, Switzerland, Indiana, doctor, medical
HIRT, Ella (daughter), f, w, 45, married, Indiana, Indiana, Pennsylvania, none
KRONBERGER, Ike (lodger), m, w, 59, single, Indiana, Germany, Germany, proprietor, clothing store
LOEB, Gus (lodger), m, w, 57, single, Immigrated to USA in 1889, Naturalized in 1893, Germany, Germany, Germany, manager, department Store

1930 US CENSUS
Ward 1, Brazil City, Clay County, Indiana
Series: T626 Roll: 581 Page: 17
April 2, 1930
44 East National Avenue, Brazil, Indiana
DWELLING 1/FAMILY 1
HOSKINS, George C. (head), m, w, 58, single, Indiana, Indiana, Pennsylvania, retired
HOSKINS, Florence E. (sister), f, w, 73, single, Iowa, Indiana, Pennsylvania, none
HOSKINS, Adalaide (sister), f, w, 75, widow (age at first marriage: 25), Illinois, Indiana, Pennsylvania, none
HIRT, Dr. L. S. (roomer), m, w, 55, widow, (age at first marriage: 28), Indiana, Switzerland, Indiana, physician, general practice
LOEB, Gustave (roomer), m, w, 56, single, Germany, Germany, Germany, merchant, dry goods