Possible first marriage for Mary Ellen:
Marriages Jun 1866
McKeller Thomas - Liverpool 8b 4
Seed Mary E - Liverpool 8b 4
(Source: Family Search Beta)
Marriage 20 June 1866 at St Alban's, Bevington, Liverpool, Lancashire
Thomas McKeller, aged 24, Widowed - Father Daniel McKeller
Mary Ellen Seed, aged 20, Single - Mother Christiana Seed