Nikki
I am afraid that these death certificates will not help you with your quest for a Rachel Woods born around 1790.
The details from the death certificates are:
Ann Woods - died 13 January 1900 at Mullaghmore, Clogher
aged 48 years, spinster, Servant
death registered by Catherine Congill or Corgill
cause of death: malignant disease of stomach
George Woods - died 23 July 1904 at Donaghmoyne
aged 55 years, married, Farmer
death registered by Thomas Woods, brother of Donaghmoyne
cause of death: cardiac disease
George Woods can be found on the 1901 census at Donaghmoyne:
George Woods, 47 years, Head of Family, Farmer, Church of Ireland, born Tyrone
Mary Woods, 42 years, Wife, No occupation, Church of Ireland, born Tyrone
Maud Woods, 16 years, Daughter, Scholar, Church of Ireland, born Tyrone
Jane Woods, 14 years, Daughter, Scholar, Church of Ireland, born Tyrone
Robert Woods, 10 years, Son, Scholar, Church of Ireland, born Tyrone
Thomas Woods, 44 years, Brother, Farmer, Church of Ireland, born Tyrone
Thomas Keenan, 19 years, Farm Servant, Roman Catholic, born Tyrone
Lena Keys, 19 years, Domestic Servant, Church or Ireland, born Tyrone.
Otherwise, I am afraid that I cannot help.
Regards
David