is this William and Marthas marriage ?
Marriage: 10 Apr 1797 St Nicholas, Liverpool, Lancashire, England
William Maylor - (X), Sawyer, Liverpool
Martha Threlfall - (X), Spinster, Liverpool
    Witness: Tho. Wright; William Fairhurst
Laughing Boy - a warm welcome to Rootschat 
i have a question for you  - you say William and Martha were born 1778 - this would make them 18 0r 19 at their marriage - NORMALLY if bride and groom were under 21 it would state MINOR on the marriage record - it only gives an X which usually meant they couldn't sign their name - couldn't read or write - SO - is it possible William and Martha were born before 1778 ?? maybe at least 3 years before 

Martha was 4 months pregnant when they married 
Baptism: 9 Oct 1797 St Nicholas, Liverpool, Lancashire, England
William Maylor - Son of William Maylor & Martha (formerly Threlfall), his wife
    Born: 17 Sep 1797
    Abode: Fairhurst street
    Occupation: Sawyer
    ............................... 
