The wife of Samuel Moses Samuel (1775-1873), Esther Cohen (1782-1859), was the sister of Hannah Barent Cohen (1783-1850). Hannah married Nathan Mayer Rothschild (1777-1836) in 1806.
See also the monumental genealogy of the Rothschild banking family, Le Sang des Rothschild by Joseph Valynseele and Henri Mars (ICC Editions, Paris, 2004). A copy is available upon request in the Reading Room.
Samuel family, printed family history, 1912
000/2391, 1 volume
Records of the Samuel Family by J. Bunford Samuel, printed for private circulation by J.B. Lippincott Company, Philadelphia, 1912. One of hundred copies, this is copy number 31, presented to Lord Rothschild (Nathaniel, 1st Lord Rothschild). Also a covering letter from the author to Lord Rothschild, dated 15 November 1912, together with loose printed family trees.