Here are the children listed in 1870:

Charles 16
Rogers 14
Isaac 12
John 9
Cad 5
Fannie 3
Annie - 1

In 1880 census I found part of the family misspelled (the older boys have left home but there is a new younger sister):

1880 Census Place: Raleigh, Wake, North Carolina

Source: FHL Film 1254985 National Archives Film T9-0985 Page 359A

Relation Sex Marr Race Age Birthplace
John KELLEY Self M M MU 56 NC

Occ: Livery Stable Fa: NC Mo: NC
Anna KELLEY Wife F M B 52 NC

Occ: Attend To House Fa: NC Mo: NC
Cad KELLEY Son M B 15 NC

Fa: NC Mo: NC
Fannie KELLEY Dau F S MU 13 NC

Fa: NC Mo: NC
Annie KELLEY Dau F S MU 10 NC

Fa: NC Mo: NC
Lizzie KELLEY Dau F S MU 8 NC

Fa: NC Mo: NC

The older boys are listed seperately:

1880 Census Place: Raleigh, Wake, North Carolina

Source: FHL Film 1254984 National Archives Film T9-0984 Page 289D

Relation Sex Marr Race Age Birthplace
Isaac OKELLEY Self M S B 20 NC

Occ: Livery Driver Fa: NC Mo: NC

1880 Census Place: Raleigh, Wake, North Carolina

Source: FHL Film 1254984 National Archives Film T9-0984 Page 289D

Relation Sex Marr Race Age Birthplace
Jno. OKELLEY Self M S B 18 NC

Occ: Livery Driver Fa: NC Mo: NC

1880 Census Place: Raleigh, Wake, North Carolina

Source: FHL Film 1254984 National Archives Film T9-0984 Page 254B

Relation Sex Marr Race Age Birthplace
Charles OKELLY Self M M MU 26 N. C.

Occ: Hostler And Driver Fa: N. C. Mo: N. C.
Joanna OKELLY Wife F M MU 22 S. C.

Occ: Dressmaker Fa: S. C. Mo: N. C.

The only one I don't see is Roger.

Hope this helps,

Denise