The date of death ,Feb 10 1868 on A W Nightingill's headstone is incorrect; how this mistake could have happened when the headstone was prepared to honor such a beloved honorable man is not clear.
Research shows the death of Alanson Walker "Lance" Nightingill occurred on February 12, 1870, information gathered from:
The Carson Daily Appeal(Carson City, Nevada) -Thu, Nov 18, 1869 Page 2
MARRIED, In Carson City, Wednesday night, Nov. 17, 1869, by the
Rev. Geo. B. Allen, Mr. Alanson W. Nightingill to Miss Lillias Meder.
No Cards. May the wide world get broader when it is not broad enough for this couple to be happy.
Marysville Daily Appeal, Volume XXl, number 41, 18 February 1870
The editor of the Carson Appeal, H. R. Migbels, gives the following biographical sketch of A. W. Nightingill, deceased: The good friend and esteemed citizen whose name appears above is dead. He died between the hours of 10 and 11 o'clock on the night of Saturday last, the 12th inst.
( This last article is quit long so I did not copy all of it, I just wanted it to show that this death date, 2-12-1870 and the marriage date of 11-17-1869, would make the headstone death date of 2-10-1868 as incorrect and also would be impossible )
Bio information is a collection of Archives research, newspaper articles and tapping into resources on the internet
Alanson Walker "Lance"Nightingill's parents were, Ebenezer D Nightingill and M Morris from Ohio. The father was in the painting trade where his sons were also working. In 1849 Alanson and his brother Gideon Rither Nightingill left Ashland County, Ohio and headed across the Great Plains for California. The brothers were both pioneers of Marysville, with Gideon settling down and Alanson, "Lance" soon off exploring through the El Dorado Mountains. He did hang around Marysville for a few years, according to the book, "History of Yuba and Sutter Counties by Peter J Delay, Lance was made Marysville City Marshall the years of 1856-1857.
In the 1860's Lance headed to Carson City, Nevada serving as the first State Controller once Nevada was made a state. After his term ended he was appointed sheriff of Ormsby County, but only served for a year as his health was failing. On November 17, 1869 Alanson W Nightingill married Miss Lillias Meder in Carson City. Sadly just a few months later he died of tuberculosis, leaving a bereaved wife Lillias who, with his brother Gideon and wife Jane, returned his bodied to Marysville by way of the California-Orgeon train for burial. They were met by a committee of Odd Fellows and Exempt Firemen as well as a large crowd of citizens.
The next day Alanson Walker Nightingill was laid to rest in the Marysville City Cemetery by the young son Araldo,"Rolla", of his brother Gideon, who had died some time before.

The date of death ,Feb 10 1868 on A W Nightingill's headstone is incorrect; how this mistake could have happened when the headstone was prepared to honor such a beloved honorable man is not clear.
Research shows the death of Alanson Walker "Lance" Nightingill occurred on February 12, 1870, information gathered from:
The Carson Daily Appeal(Carson City, Nevada) -Thu, Nov 18, 1869 Page 2
MARRIED, In Carson City, Wednesday night, Nov. 17, 1869, by the
Rev. Geo. B. Allen, Mr. Alanson W. Nightingill to Miss Lillias Meder.
No Cards. May the wide world get broader when it is not broad enough for this couple to be happy.
Marysville Daily Appeal, Volume XXl, number 41, 18 February 1870
The editor of the Carson Appeal, H. R. Migbels, gives the following biographical sketch of A. W. Nightingill, deceased: The good friend and esteemed citizen whose name appears above is dead. He died between the hours of 10 and 11 o'clock on the night of Saturday last, the 12th inst.
( This last article is quit long so I did not copy all of it, I just wanted it to show that this death date, 2-12-1870 and the marriage date of 11-17-1869, would make the headstone death date of 2-10-1868 as incorrect and also would be impossible )
Bio information is a collection of Archives research, newspaper articles and tapping into resources on the internet
Alanson Walker "Lance"Nightingill's parents were, Ebenezer D Nightingill and M Morris from Ohio. The father was in the painting trade where his sons were also working. In 1849 Alanson and his brother Gideon Rither Nightingill left Ashland County, Ohio and headed across the Great Plains for California. The brothers were both pioneers of Marysville, with Gideon settling down and Alanson, "Lance" soon off exploring through the El Dorado Mountains. He did hang around Marysville for a few years, according to the book, "History of Yuba and Sutter Counties by Peter J Delay, Lance was made Marysville City Marshall the years of 1856-1857.
In the 1860's Lance headed to Carson City, Nevada serving as the first State Controller once Nevada was made a state. After his term ended he was appointed sheriff of Ormsby County, but only served for a year as his health was failing. On November 17, 1869 Alanson W Nightingill married Miss Lillias Meder in Carson City. Sadly just a few months later he died of tuberculosis, leaving a bereaved wife Lillias who, with his brother Gideon and wife Jane, returned his bodied to Marysville by way of the California-Orgeon train for burial. They were met by a committee of Odd Fellows and Exempt Firemen as well as a large crowd of citizens.
The next day Alanson Walker Nightingill was laid to rest in the Marysville City Cemetery by the young son Araldo,"Rolla", of his brother Gideon, who had died some time before.