Hello,
all these villages are part of the Jever area within Oldenburg.
Hohenkirchen is a parish.
this Coldewey (there are 4 in Oldenburg, two of them in Jever) is probably
the one within the parish Hohenkirchen. There is another one in Fedderwarden.
Ollacker is part of Tettens, there is Gross- and Klein Ollacker being part of
Wiefels.
Look at www.familienkunde-oldenburg.de for a map, information about church
records etc.
Gerold Diers