In 1812, Davy Crockett enlisted in the War of 1812 as Scout in the Tennessee militia. During this War of 1812. Crockett served in Capt John Cowan's Company of the Separate Battalion of Volunteer Mounted Gunmen and the Second Regiment, Tennessee Volunteer Mounted Riflemen. In 1815, he was discharged as 4th Sergeant.
I leave this rule for others when I'm dead,
Be always sure you're right--THEN GO AHEAD!
David "Davy" Crockett
A 19th century American folk hero, frontiersman, soldier and politician, he's commonly referred to as the, "King of the Wild Frontier". He represented Tennessee in the U.S. House of Reps, and in 1826, was elected to the U.S. Congress, where he opposed the Indian Removal Act.
Crockett's opposition to Andrew Jackson led to his defeat in the 1834 elections, prompting his angry departure to Texas Colony of Mexico shortly after. Once in Texas, Crockett took part in theIn early 1836, Crockett took part in the Texas Revolution.
John Crockett (c.1753 – after 1802) and Rebecca Hawkins 
Colonel: in the Texas Revolution and Battle of the Alamo
Col David (Davy ) Crockett was killed at the Battle of the Alamo, March 6, 1836 as well as the other Alamo Defenders.. 
When Crockett joined the Alamo, he had asked for the difficult assignment of defending the outside perimeter. He stood by his word. 
David Crockett brought with him a group from Tennessee (other adventurers). They joined the garrison in February prior to the arrival of Santa Anna's army to San Antonio de Bejar to begin the Siege of the Alamo Feb 23, 1836. 
David Crockett was killed in the Battle of the Alamo, along with the other Defenders of the Alamo, March 6, 1836, the Alamo, San Antonio, Bexar, Texas
Statements of Susannah Dickenson, wife of Almaron Dickinson as well as the diary of a Mexican officer, Lt. José Enrique de la Peña and Joe, a slave reported seeing Davy Crockett near the Alamo building, and then lying dead with some slain Mexican army lying nearby.
Excerpt from Davy Crockett to James Lockhart Totten
11 Feb 1825.
I recd your polite favor 13 Jany and purused it. Old Hickery is like a daimond in the hill of no value until its rubed and polished. So with Gen Jackson the harder they rub him the Brighter he shines.
I have the subject of [our] vacant land under train and litle doubt of obtaining a relinquishment. I wish you to write me often.
Lenthy tender my best regards to all friends excuse my scrall iam in great hast.
your friend & humble servant.
signed David Crockett. jan lala (ID *****7442), Re: 4 BIRD LOCKHARTS AND THE TOTTENS, July 26, 2008,
↑ "Find A Grave Index," database, FamilySearch Familysearch.org accessed 21 May 2016), David Crockett, 1836; Burial, San Antonio, Bexar, Texas, United States of America, San Fernando Cathedral; citing record ID 2308, Find a Grave, http://www.findagrave.com
It may be possible to confirm family relationships with Davy by comparing test results with other carriers of his Y-chromosome or his mother's mitochondrial DNA.
However, there are no known yDNA or mtDNA test-takers in his direct paternal or maternal line.
It is likely that these autosomal DNA test-takers will share DNA with Davy: