or
seventeen other counties, was placed at the disposal of the Commission.

Invaluable assistance has been rendered by State, County, and Township
Sunday School Associations. In about half of the townships, officers of
the township associations supplied needed information. Miss Clara E.
Clemmer, Secretary of the County Association, gathered nearly all the data
for Preble County. The Rev. C. A. Spriggs, a Missionary of the American
Sunday School Union, furnished most of the facts used in making the map of
Pike County.

In a few counties, superintendents of public schools either gave desired
information themselves, or supplied the names of others who did, and in
some cases the agricultural agents lent a hand.

County atlases were consulted, and verifications and corrections were
obtained from many sources. The topographical maps issued by the United
States Geological Survey gave the locations of certain churches. The Year
Books of the various denominational bodies were in constant use for
verification and reference, as were the United States Census, the Ohio
Statistical Reports, and other Government documents.

In the different sections of Ohio Mr. Gill made extensive investigations
on the ground, while large numbers of country ministers and church members
were consulted personally. Specific information has thus been collected in
nearly every township, while at country church institutes and conferences
in various parts of the State, many facts were secured from the
discussions on rural church conditions. Not only has information,
therefore, been received from very many people intimately associated with
the churches of rural Ohio, but also, and very widely, from personal
observation on the field itself.

In spite of all the care that could be taken, after the work on the
township maps was thought to be finished, a few other churches were
discovered. If, in the future, still other churches should be found which
are not on the maps, the number of them will be insignificant. Their
discovery will doubtless in no wise affect the conclusions which have been
drawn as to the country church situation in Ohio, nor their omission
impair the general usefulness of the maps.

In the constructive work of the Commission and of the Ohio Rural Life
Association for rural church betterment, as well as in the survey, the
Ohio State University, under Dr. Thompson, has always given free and
valuable cooperation.

For all this kind assist