"Here, in approximately one hundred pages is the simple, un-adorned, and statistic-less story of an average Americanindustry. It began in a modest way in 1850, when a distinguished Baltimore chemist, Dr. Richard A. Tilghman, who, while studying in England, discovered two important chemical processes, returned to the United States and obtained patents for them. The patents covered a process for manufacturing caustic soda ash, and chlorine-bearing compounds, such as bleaching powder. It was known as 'TheStrontiaProcess'." [from a book review by John W. Oliver, https://journals.psu.edu/wph/article/view/2361/2194]
A history of the Little Britain Monthly Meeting of the Religious Society of Friends, 1804 to 1954 : an address at the Sesqui centennial celebration, August 28, 1954
A history of fifty years of banking in Christiana, Pennsylvania : commemorating the fiftieth anniversary of the Christiana National Bank, October 21, 1953
The holy experiment, our heritage from William Penn; series of mural paintings in the governor's reception room, in the Senate chamber, and in the supreme courtroom of the State Capitol at Harrisburg, Pennsylvania, U.S.A
