When Margaret Ennis was born on 17 January 1809, in Montgomery, Tennessee, United States, her father, Vincent Ennis, was 30 and her mother, Mary Owinge, was 35. She married Isaac Martin Snider Sr. about 1830, in Illinois, United States. They were the parents of at least 3 sons and 1 daughter. She died on 15 August 1841, in Franklin, Illinois, United States, at the age of 32, and was buried in Osage Cemetery, Royalton, Franklin, Illinois, United States.
Irish: shortened Anglicized form of Gaelic Mag Aonghuis ‘son of Angus’, see McGinnis and compare Angus and Hennessy .
English: perhaps a variant of Ince , or Henney with loss of initial H- and the addition of a post-medieval excrescent -s, or a variant of Enos .
Cornish: from any of various places in the western half of Cornwall called Ennis, Enys, Ninnes, etc., from Cornish (an) enys ‘(the) island’. The Saint Gluvias family is certainly from Enys in Saint Gluvias parish.