Not sure this is of any help, but....
Looking back into my family tree my g grandmother on my mothers side was a Sarah Cherry, her father was a Moses Cherry and his father was a Robert Cherry. This is according to Moses` marriage cert when he married a Sarah Lowry in Garvaghy Parish Church in 1852.
Also this 1901 census..
Name Moses Cherry
Birth abt 1821 Co Down
Residence 31 Mar 1901 Ednego, Skeagh, Down, Ireland
Spouse Sarah Cherry
Children Mary Ann Cherry