Elżbieta was born in Zazamcze in 1851, baptized in Włocławek, scan no 38 on the genealogiawarchiwach site under year 1851. Her mother's maiden name was not Osińska, but Ogińska. Father Walenty Teodorkowski
A little tip: if you type in Teodor*, instead of Teodorkowska on the search site in genetyka, it will search for all names starting with Teodor, as in this case, Elżbieta's surname was indexed as Teodurkowska
As you can see, she had siblings, I checked that Andrzej born in 1854 was her brother.
Walenty and Marcjanna got married in 1845 in Włocławek. Scan no 78 on genealogiawarchiwach site. Walenty's parents are Jakub and Jadwiga, he was 23 and he was born in Witowo. Marcjanna's parents are Maciej and Klara born Chojnacka, she was 19, born in Wie... (I can't read the name of the village)
To access the scans, click on a little square next to the year that you're interested in, under the options column:
https://www.genealogiawarchiwach.pl/#qu ... uery.query
Back to Wincenty Gudonis, it says he was 30 on his marriage certificate, so born ca. 1849. There is no village he was born in, but there is a name of the village his mother lived in, but somehow I can't read it (Dargupsy?). It's name will be in Lithuanian nowadays, the Troki deanery books are on the familysearch site, just type in Troki there and go to Metrical books : Deanery, 1700-1938, but you will need the name of the parish so you know where to look.
Edit: The name of the village that Marcjanna Ogińska was born is Wieniec.
Good luck
Eliza