^Stuart Thayer and William L. Slout. "The Nathans, a Circus Family". American Circus Anthology, Essays of the Early Years. Retrieved 2010-03-11. The circuses in which Nathans was involved over these years read as follows: 1843 - Welch & Mann; 1844 - Welch, Mann & Delavan; 1845 - Welch, Mann & Delavan; 1846 - Welch, Mann & Delavan; 1847 - Welch & Delavan; 1848 - Welch, Delavan & Nathans; 1849 - Welch, Delavan & Nathans; 1850 - Welch, Delavan & Nathans; 1851 - Welch & Nathans.
^William L. Slout. Olympians of the Sawdust Circle. ISBN0-8095-0310-7. [His] real name [was] Routh Goshen, born May 5, 1837, died February 12, 1889, Bright's disease and dropsy, Clyde, New Jersey. Known as the "Palestine Giant," Arabic parents, youngest of 14 or 15 children. Barnum apparently hired him for his museum after encountering him on the streets of New York. Advertised as 7'-6", shoulder 2'-6" and waist 77", weight 560 pounds. Aggrandized by appearing with dwarfs. Associated with Barnum circus 1879-1880 and Nathans & Co. 1882.