Robert H. Sayre
|Robert Heysham Sayre|
October 13, 1824|
|Died||January 4, 1907
|Spouse(s)||Mary Evelyn Smith
Helen Augusta Packer
Martha Finley Nevin
|Children||Charles White Sayre
Mary Eliza Sayre
Anna Catherine Sayre
Robert Heysham Sayre, Jr.
Elizabeth Kent Sayre
Jennie Weston Sayre
Francis Rodolphus Sayre
Ellen May Sayre
Ruth May Sayre
John Nevin Sayre
Francis Bowes Sayre, Sr.
Cecil Nevin Sayre
|Parent(s)||William Heysham Sayre
Robert Heysham Sayre (October 13, 1824 – January 4, 1907) was vice president and chief engineer of the Lehigh Valley Railroad. He was also vice president and general manager of Bethlehem Iron Company, precursor of Bethlehem Steel Corporation. The town of Sayre, Pennsylvania was named in his honor.
Sayre was born on October 13, 1824 to William Heysham Sayre and Elizabeth Kent, his wife, on the Kent family's farm near Bloomsburg in rural Columbia County, Pennsylvania. In 1828, the Sayre family moved to Mauch Chunk (now Jim Thorpe), Pennsylvania where William worked for the Lehigh Coal & Navigation Company as a lockmaster. As a result of observing the locks, young Robert showed an early interest in construction and civil engineering.
Sayre was one of the founders of Bethlehem Iron Company, precursor of Bethlehem Steel Corporation. He was responsible for the design and construction of the company's first iron works during the years 1861 through 1863. He became vice president of Bethlehem Iron Works in 1891.
Sayre built a large house in Bethlehem and lived in it from 1858 until his death in 1907. Currently his house is known as the Sayre Mansion, and is in use as a bed-and-breakfast. 
- "Sayre Historical Society". sayrehistoricalsociety.org. 1929-10-29. Retrieved 2012-06-24.
- "Lehigh Canal Roots". Carbon County Magazine. Retrieved 2012-06-24.
- Special to The New York Times. (1907-01-05). "Robert H. Sayre. - View Article - NYTimes.com". New York Times. Retrieved 2012-06-24.
-  Archived January 27, 2008, at the Wayback Machine.
- "History of the Sayre Mansion Inn a Bethlehem, PA bed and breakfast". Sayremansion.com. Retrieved 2012-06-24.
- "Robert H. Sayre Marker". Hmdb.org. Retrieved 2012-06-24.
- "Lehigh University Library Services". lehigh.edu. Retrieved 2016-03-08.
- Doolittle, C.L. (June 1897). "THE SAYRE OBSERVATORY, SOUTH BETHLEHEM, PENNSYLVANIA". Publications of the Astronomical Society of the Pacific 9 (56): 130–131.
- Metz, Lance E. The Diaries of Robert Heysham Sayre. Bethlehem, PA: Lehigh University, 1990.