Cath Howarth - Catherine Howarth

Is this the same woman as married William Ernest Grinter or are there two Catherines being mixed up?

Don't know a Catherine Maud Howarth. The daughter of Isaac and Ellen Howarth was Catherine Howarth, no middle name, married to Franklin Horace Dummett 1884-1951. Only marriage. Daughter Kathleen 1951-1997, Son Roger Franklin Walter Dummett 1938. Catherine was my grandmother. I am Kathleen Bryson's (Dummett) daughter. I knew my Grandmother and her brothers and sisters very well and
know this to be correct. I have certificates to prove same.