I'm not sure what information or direction you want, other than clarifying Gustav's birthplace and locating birth information on Hattie.
The 1893 and 1894 Toledo city directories do not show any DODT or DOEDT. In 1893, Gustav was a laborer and lived in the rear of 421 Sumner as did a Bertha SIEGLER. Her listing shows "bds" (boards) there, so she must have been a dependent of Gustav-sister or mother?
Gustav and Hedwig DODT were married on 22 Dec 1894 by Rev. R. E. M. ENGERS who, according to the city directory, was the pastor of St. Lucas (German) Lutheran Church.
You may want to check the records of St. Lucas, on film at the library, but those early records are not indexed and are written (mostly) in German. Gustav's marriage is recorded on old page 315 (new page 273) in the section titled "Copulationen von 1887".