Benjamin Davis, 18351905 (aged 70 years)

Birth about 1835 31 27
Birth of a brotherThomas R. Davis
about 1838 (aged 3 years)
Birth of a brotherJames Francis Davis
about 1840 (aged 5 years)
Birth of a sisterAlice Nancy Davis
1844 (aged 9 years)
Census October 1, 1850 (aged 15 years) Age: 15
MarriageSarah A View this family
1855 (aged 20 years)

Death of a brotherThomas R. Davis
May 17, 1863 (aged 28 years) Age: 24 years 11 months 2 days
Death of a motherElizabeth Smart
March 3, 1876 (aged 41 years) Age: 68 years4 months18 days
Note: URL for list: http://www.interment.net/data/us/ia/dallas/panther/panther.htm
Death of a fatherGeorge Davis
November 6, 1876 (aged 41 years) Age: 76 y, 7 m, 15 d
Death of a sisterRebecca Ann Davis
October 27, 1887 (aged 52 years)
Burial of a brotherJames Francis Davis
1892 (aged 57 years)
Note: This may or may not be James, son of George--the family lived in Brown Township, Montgomery County, for 20 years, moving to Iowa when James was about 11 or 12; he is living in Iowa with his parents in 1860, and then in the 1870 census is in their household with a wife named Amanda; there is a marriage record for James Davis marrying Amanda Allen in 1869 in Montgomery County, and in this cemetery, the stone is for James Davis and Amanda Allen Davis, with the right ages for birth (she lived a lot longer than he did, though). Since there are a lot of Davises in that cemetery, and during the 1830, 1840, and 1850 censuses there were Davis households living near George's, before they moved, it is certainly possible that James moved back there and lived near cousins. All circumstantial evidence, which is why I'm saying maybe.
Death of a sisterAchsah J. Davis
1896 (aged 61 years)
Death of a brotherJohn H Davis
1900 (aged 65 years)

Note: John H is listed as aged and infirm in the 1900 census, living with niece and nephew, and is not found in the 1910 census as far as I can tell.
Death of a brotherSimeon Silas Davis
February 1905 (aged 70 years)
Death after 1905 (aged 70 years)

Note: Because he might be listed in the 1905 Iowa census, if he's the same person who had married Sarah A Davis and lived in Guthrie County, Iowa.
Family with parents
father
18041876
Birth: calculated 1804Virginia, United States
Death: November 6, 1876Iowa, United States
mother
18071876
Birth: November 15, 1807Virginia, United States
Death: March 3, 1876Adams Township, Dallas County, Iowa, United States
elder brother
18261900
Birth: October 1826 22 18Virginia, United States
Death: 1900
2 years
elder sister
18281896
Birth: 1828 24 20Montgomery County, Indiana, United States
Death: 1896Dallas County, Iowa, United States
2 years
elder sister
18291887
Birth: about 1829 25 21Indiana, United States
Death: October 27, 1887Dallas County, Iowa, United States
4 years
elder brother
18321905
Birth: calculated 1832 28 24Crawfordsville, Montgomery, Indiana, United States
Death: February 1905Colfax Township, Dallas County, Iowa, United States
4 years
himself
18351905
Birth: about 1835 31 27Indiana, United States
Death: after 1905
4 years
younger brother
18381863
Birth: about 1838 34 30Indiana, United States
Death: May 17, 1863Adams Township, Dallas County, Iowa, United States
3 years
younger brother
18401892
Birth: about 1840 36 32Indiana, United States
Burial: 1892Oak Hill Cemetery, Crawfordsville, Montgomery County, Indiana, United States
5 years
younger sister
1844
Birth: 1844 40 36Indiana, United States
Family with Sarah A
himself
18351905
Birth: about 1835 31 27Indiana, United States
Death: after 1905
wife
Marriage Marriage1855
Death

Because he might be listed in the 1905 Iowa census, if he's the same person who had married Sarah A Davis and lived in Guthrie County, Iowa.

Note

This is a possible spouse, I have them listed in the 1860 census in an adjacent Guthrie County, Iowa, married for 5 years; the oddity is that they have living with them a Geo. W. Wolfe, age 11--and 4 days earlier, in the census of George Davis his father, in Adams Township, Dallas County, they also list a Geo. Wolfe, age 11. Coincidence? Especially since in the 1870 census George Wolfe, age 20, is still living with Benjamin and Sarah Davis, in Guthrie County, Iowa, listed as a farm hand.

Things to make you wonder--except I have no marriage record for him, and no sure way, other than George Wolfe, to link him to George Davis (well, except he named one of his kids George, but it was a popular name).