I've got David Neely b abt 1837 with parents in Cole Co, MO in 1850 census

1860 shows him in Dallas twp, Holt Co, MO with 16 y/o wife Mary F. Neely. Marriage: Mary Francis HEADRICK b: 1844
Married: 17 APR 1858 in Holt Co.,Mo.

1880 is noted as below now married to Catherine () Judd Neely
Name: David Neely
Home in 1880: Rock Creek, Nemaha, Kansas
Age: 43
Estimated Birth Year: abt 1837
Birthplace: Missouri
Spouse's Name: Catheriny
Father's birthplace: Kentucky
Occupation: Farming
Household Members: Name Age
David Neely 43
Catheriny Neely 37
Mary E. Judd 18
Rosa Lee Judd 16
John D. Neely 10
Robert Neely 7

Note son John D. is 10 which would indicate the second marriage occured likely after the war. and before 1870

Using the above he is found in the Holt Co Census in 1870 married to Catherine:

Name: David Neeley
Estimated Birth Year: abt 1840
Age in 1870: 30
Home in 1870: Dallas, Holt, Missouri
Post Office: North Point
Household Members: Name Age
David Neeley 30
Catharine Neeley 24
Mary Neeley 7
Rose Neeley 4
John Neeley 2

His reported death is Feb 1890 - Bigelow, Holt Co., Missouri.

John R.