He was born in 1845/46, in Montour County, Pennsylvania, to Philip Derr and Catharine [unknown family name]. [sources: date: 2, 4 (16 in 1864), 5 (3 in 1850), 6 (12 in 1860), 7 (b. 1848). place: 2, 4 (Lewisburg), 5, 6, 7. parents: 4, 5, 6]
In 1850, he was living in Lewisburg, Union County, Pennsylvania. He was living with his parents Phillip and Catharine Derr, and with his (presumed) siblings Isaiah and Jeremiah. He had attended school within the year.
In 1860, he was living in Chillisquaque Township, Northumberland County, Pennsylvania. He was living with his father Philip Derr, and (presumed) siblings Jeremiah, William, Philip, Mary, Anne, and John, along with two others. He had attended school within the year.
When he enlisted, he was living in Reading, Pennsylvania, and was a laborer. [source: 2]
The Jeremiah Derr who served in company F is apparently his brother. [sources: 5, 6]
When he enlisted, he was 5 feet 5 inches tall, and had a light complexion, grey eyes, and light hair. [source: 2]
He enlisted and was mustered into service on 4 February 1864. He enlisted at Reading, Pennsylvania. He was mustered into service at Reading, Pennsylvania. He was a private, in company F. [sources: 1, 2, 8]
On 23 February 1864, he died, in Convalescent US Army Hospital, Philadelphia, Pennsylvania. He was a private. He died of typhoid pneumonia. He was married. He was buried in the Harmony & Reformed Cemetery, Milton, Northumberland County, Pennsylvania. [source: 3 (26 Feb), 4 (23 Feb), 8]
He was not accounted for when the regiment mustered out. [source: 1]
On 29 November 1879, a contract was signed with DW Whitney to provide a headstone for his grave. [source: 3]
1 Bates, Samuel Penniman. History of Pennsylvania volunteers, 1861-5. Harrisburg: B. Singerly, state printer, 1869-71. 5 volumes. 'Ninety-first regiment', volume 3, pages 186-233. (In the roster) (Aaron J Derr)
2 Civil War Veterans' Card File, available at the Pennsylvania State Archives, searched 22 January 2005 (Aaron J Derr [rolls have 'Aron'])
3 Card records of headstones provided for Union Civil War Veterans 1879-1903 (Aaron J Derr)
4 Philadelphia, Pennsylvania, death certificates, 1803-1915, 23 February 1864 (Aaron Derr)
5 1850 US census, Pennsylvania, Union County, Lewisburg, microfilm series M432, film 831, page 305 = 609 handwritten (Aron Derr)
6 1860 US census, Pennsylvania, Northumberland County, Chillisquaque Township (post office Milton), microfilm series M653, film 1149, page 155 = 49 handwritten (Aaron Derr)
7 Brobst family historical registry, contact Art Holmes, updated 9 February 2012 (accessed 12 February 2012) (Aaron Derr)
8 index to compiled service records of volunteer Union soldiers who served in organizations from the state of Pennsylvania (Aaron J Derr)
| line | 1 | 2 | 3 | 4 | 5 |
| Dwellings visited | 1927 | ||||
| Families visited | 2018 | ||||
| Name | Phillip Derr | Catharine | Isaiah | Jeramiah [sic] | Aron |
| Age | 32 | 27 | 6 | 5 | 3 |
| Sex | m | f | m | m | m |
| Color | |||||
| Occupation of males over 15 years | Blacksmith | ||||
| Real estate owned | 500 | ||||
| Birthplace | Pa [?] | Germany | |||
| Married within year | |||||
| Attended school within year | 1 | ||||
| Over 20 & can't read/write | 1 | ||||
| Deaf, dumb, blind, etc. |
| line | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| Dwelling number | 337 | |||||||||
| Family number | 331 | |||||||||
| Name | Philip Derr | Jeremiah " | Aaron " | William C " | Philip C " | Mary C " | Anne E " | John B " | Mary E Call | Washington Hureback [?] |
| Age | 41 | 14 | 12 | 10 | 8 | 4 | 2 | 4/12 | 23 | 29 |
| Sex | M | M | M | M | M | F | F | M | F | M |
| Color | ||||||||||
| Occupation | Black Smith | Domestic | Black Smith | |||||||
| Value of real estate owned | 1200 | |||||||||
| Value of personal estate | 500 | |||||||||
| Place of birth | Pennsylvania | do | do | do | do | do | do | do | do | do |
| Married within year | ||||||||||
| Attended school within year | 1 | 1 | 1 | 1 | ||||||
| Cannot read & write | ||||||||||
| Deaf, dumb, blind, etc. |