Kosbab, Otto Henry Frantz

Henrietta Kosbab's Birth Certificate (Daughter b1878) Father named asHenry (not Otto)
*1881 Census (3 years later) he is the family head named as Franzt(not Otto)
1891 Census (10 years later) he is named as Otto.
Henry Kosbab's marriage certificate names his father as Otto.
Franzt and Otto appear to be the same person 1881 = 40 1891 = 50
Questions about Otto Kosbab:
What college or university could he have taught Mathematics at?
What college or university are near the river Thames?
His occupation was noted as Gardener so why, or how could he also beena teacher?
If Otto/Henry/Franzt was capable of speaking 7 different languages,why would he have been a mere gardener, or even taught Mathematics?

Apparently could speak 7 languages - linguist
Story: Eloped because he got Louise into trouble.He appears to haveused either of the 3 christian
names.
Noted on son Charles marriage certificate as HenryPrussian Army
Marched to church
The head of the Kosbab empire in the UK. While we know a lot abouthis wife and children, we know very little about him. We do not knowexactly when and where he born, parents, brothers and sisters.Education etc etc.
He was a professor of Mathematics and taught at a college in England(although, when the story was related, the word University wasmentioned) down by the river Thames. The story goes that Otto Kosbabmarried one of his German students, Louise Hunchen. (see below)

*1881 Census - Name recorded as Frantz Husbert