Always one to take on a challenge, I've found nothing definitive about Dave Limm...
However, with a bit of soundex sleuthing the below is a possibility based on age and geographic proximity, please understand I've found no direct connection but strong coincidental evidence that may lead to someone else connecting a few more dots.
There is a Samuel David Lamme (pronounced Lem: https://www.howtopronounce.com/lamme/ option 3) in the household of James and Mary Rollins in the 1850 census. Note also brothers Josiah and William Wirt Lamme. This Samuel D Lamme is also found in Sacramento California later in the 1850 census enumeration year. Turns out that the afore mentioned Mary Rollins (nee Hickman) is the Lamme boys half sister, her mother being Sophia Woodson Hickman Lamme, Sophia having married David Steel Lamme after her first husband James Hickman died in 1825. Sophia died in 1843, thus the probable reason the Lamme kids were living with her and Maj. James Sydney Rollins (Black Hawk War) in Columbia, Boone county in 1850. Samuel David Lamme is not found in any census after the 1850 listing.
His brother Josiah is not found in 1860 but appears in Boone county in 1870 single farming nothing later.
His brother William Wirt is a merchant living in Columbia MO in 1860, becomes married by the 1863 civil war draft registration and moves to Austin Texas between 1870 and 1880 where he loses his candy store in a card game in 1885 just to have his son David buy out the debt and become famous for Lammes Chewie Texas Pralines (pronounced "lem's") https://lammes.com/about_lammes.php (Still a family businesses.)
George Caleb Bingham painted portraits of David Steele Lamme in 1837: http://www.patriciamossart.com/georgecalebbingham/george-caleb-bingham-portraits-lost-and-found/georgecalebbingham-portraits-found/36-david-steele-lamme-1837-28-x-23-private-2/
and Sophia Lamme with William Wirt Lamme in 1837:
http://www.wikiart.org/en/george-caleb-bingham/mrs-david-steele-lamme-and-son-william-wirt-1837
Bingham also painted Maj. Rollins in 1834.
http://www.wikiart.org/en/george-caleb-bingham/major-james-sidney-rollins-1834
The Lamme-Garth home in Columbia is described here http://law.missouri.edu/bowman/map_pages/lamme_garth_home.html
Below are the two 1850 census listings. Of note both list Samuel D Lamme as having no occupation, however the second lists his personal value as $2000 living in a saloon, nor do we have an exact birthdate for him. We do know that the David Steele Lamme home was sold in 1841 and his estate settled. His wife died in 1843 with the likelihood of the eldest daughter being the trustee of the younger 1/2 brothers till age 21. Samuel would have turned 21 in late 1850 and may have had a pocketful of money and was off to see the world...(the supposition being he returned to mid Missouri by 1861 to work as a hired hand needing an income source. Friends and neighbors marking his grave with a phonetic spelling of his name that they new him by, thus Limm)
1850 Census Boone County 22nd Oct 1850
Name: Samuel D Lamme
Age: 20
Birth Year: abt 1830
Birthplace: Missouri
Home in 1850: District 8, Boone, Missouri, USA
Gender: Male
Family Number: 1899
Household Members:
Name Age
James S Rollins 37
Mary E Rollins 29
James W Rollins 8
Laura H Rollins 6
Mary E Rollins 3
Sarah R Rollins 1
Samuel D Lamme 20
Josiah W Lamme 19
Wm W Lamme 14
Elizabeth A Lamme 10
1850 census California Nov 14th 1850
Name: Samuel D Lamme
Age: 20
Birth Year: abt 1830
Birthplace: Missouri
Home in 1850: Sacramento, Sacramento, California, USA
Gender: Male
Family Number: 1072
Household Members:
Name Age
Geo W Scoby 23
Charles Gage 23
Samuel D Lamme 20
So thanks for bearing with me for a probable flight of fancy but it did bring up a nearly lost prominent mid-Missouri family history that is interesting in and of itself that just so happens to kind of fit the circumstances of the mystery.
John R