Foulke, J. (1877). Friends' almanac for the year 1877: ... An account of the times and places of holding the meetings of friends on the continent of America. Astronomical calculations for the 40th degree of N. latitude and adapted to the meridians of New York, Philadelphia, Baltimore and Cincinnati. Philadelphia: Published by T. Ellwood Zell, David & Co..

Foulke, Joseph. Friends' Almanac for the Year 1877: ... An Account of the Times and Places of Holding the Meetings of Friends On the Continent of America. Astronomical Calculations for the 40th Degree of N. Latitude and Adapted to the Meridians of New York, Philadelphia, Baltimore and Cincinnati. Philadelphia: Published by T. Ellwood Zell, David & Co., 1877.

Foulke, Joseph. Friends' Almanac for the Year 1877: ... An Account of the Times and Places of Holding the Meetings of Friends On the Continent of America. Astronomical Calculations for the 40th Degree of N. Latitude and Adapted to the Meridians of New York, Philadelphia, Baltimore and Cincinnati. Philadelphia: Published by T. Ellwood Zell, David & Co., 1877.