Hi Manuela,
if nobody has done it yet, I can download the available documents and sent them to you via email.
(oo 1885, *1885 (and ~1886), *1889, *1891, *1892, *1894, *1896, oo 1919 son H.K.Paul (and + for 2 of his children), +1939 daughter Marie Cl.J., +1940 his wife Sophia, +1940 himself)
Their first daughter was born Dec 1885 in Berlin, but baptized Sep 1886 in Hannover, as Sophia lived (or at least stayed) at H-Linden at that time.
Sophias parents:
Johannes August Colonius oo Marie Lisette Bösenberg
Sophia lived at Johanniterstr. when they married, maybe this helps with identifying the church (if in Berlin).
Vanessa