A web search bring up two Gerberich collections :

Albert Gerberich Collection of Pennsylvania German Families -
FHL films 522107-118 and FHL films 522119-122 Family History Library,
Salt Lake City, UT 84150. This is on WorldCat, which might mean you can have copies of the films loaned to you through your local library or LDS centre. It's held at the Genealoogical Society of Pennsylvania, Philadelphia, which will probably do lookups. Their contact information is at https://genpa.org/contact-gsp/


Albert Gerberich Collection of Pennsylvania tombstone inscriptions - http://discover.hsp.org/Record/marc-293020. The library will probably do lookups. You can contact them at library@hsp.org