Margaret also describes his death in Letter 44. (for other references to the Kimberlins see the People Index on the Watts Hays Letters website)
She mentions Cousin Sam's oldest son and I have wondered if that referred to Henry J. Kimberlin (1834-?) or the next oldest, Isaiah Jefferson Kimberlin (1838-1914). The older Kimberlin brothers served in Co. D, 2nd/12th MO Cav. which was led first by Margaret's husband, Col. Upton Hays. The sgt. of Co. D was J. Kimberlin (not Julian) and I think that was actually Henry J. But I have been unable to find Henry J. in any census after 1850 and he is not present in the photos of the Kimberlin brothers from the early 1900's on Patricia Adkins-Roquette's website or in the photos sent me by Fields Duncan, a Kimberlin descendant. But Henry J. may have died before the Civil War as he is not living with the family in Blue Springs in 1860. It makes a kind of sense that the oldest brother would be the Sgt. and his younger brothers the Pvt.s.
I'm assuming that the widow in the photograph with Gov. Aldred was Ju's 2nd wife, Eudora Josephine Dutton.
Please contact me at email@example.com or through the website. I'm interested in photos for the Photo Gallery and filling out the genealogy file for Julian's descendants.