Seeking info on George Corner born England circa 1816. Known facts:
Lived in Trenton, Mercer Co., NJ from at least 1839 to death on 3 Jan 1874.
Married Mary Howell Mac'Kie/ McCully on 15 May 1839.
One child, Sarah Josephine Corner, was born 27 April 1840 in NJ. Apparently was not in good health early in life as noted in letter of that time. Married George J. Everitt 27 Dec 1875 in Trenton. She died 15 Jan 1878 during childbirth (she was 38 almost!) of first child, also named Sarah Josephine "Sadie" Everitt.
Occupation: 1850 wheelwright. 1860 master wheelwright.
Resided in Insane asylum in Ewing, Mercer Co., NJ in 1870.
Wife and only child lived nearby in Trenton, Mercer Co., NJ.
Wife Mary Howell Mac'Kie/McCully was born NJ c. 1810 and died 31 Aug 1872 in Trenton, NJ.

Who are his parents? When did he come to the U.S.? Did he have any siblings? What other hidden medical information is there?