Researching Family Sellerbeck

JOHANNES SELLERBECK
Christening: 30 DEC 1803 Evangelisch, Muelheim An Der Ruhr, Rheinland, Preussen

Parents - HEINRICH SELLERBECK = MARIA HELLWEG

Johannes married a Arnolda Fredericka Nicholas widow Pyster in 1828 at the DRC Church in Colombo Ceylon. He was 25yrs and she was 29yrs.

I am trying to locate what happened to them after there marriage and if they had any children.