Dothea and Hermann were married in a religious ceremony on July 23rd, 1854 at St. Paul (Liverpool) witnessed by Charles Leedham & Ann Marne.1
Marriage/Union Notes
Marriage: 23 Jul 1854 St Paul, Liverpool, Lancashire, England Hermann Dittmer - Full, Tailor, Bachelor, 27 Kent Street Dothea Haeseler - Full, Spinster, Kent Street Groom's Father: Jurgen Dittmer, Farmer Bride's Father: David Haeseler, Chemist Witness: Charles Leedham; Ann Marne Married by Licence by: Thos. Wm. Jones Register: Marriages 1854 - 1858, Page 33, Entry 66 Source: LDS Film 1656375
They had a son named Herman. The family line is yet to be completed.
Wrong person (8 years out on age), and London, not Liverpool:
DITTMER Hermann of the "Waterman;s-arms" public-house. Virginia-road Bethnal Green Middlesex died 31 March 1899 Administration London 21 April to Catharina Dittmer widow Effects £40 4s.
Deaths Jun 1899 (>99%) Dittmer Hermann 51 Bethnal G. 1c 92