Notes left by Arthur J. Alexander [1] say that two of Marcus’ daughters are first cousins to Henry Alexander (1884 - 1961). This implies that the two daughters and Henry share a grandfather. This grandfather would then be Berko Alexander (1801- ) who was married to Channa Freiman.

1892: address may have been 134 Ave. D, New York, NY (according to Nathan Alexander and Fannie Alexander's marriage license).

May be the Marcus Alexander who died 10 Jan 1910 at 413 Bushwick Ave., New York [363]
- Age 65
- Born in Austro-Hungary
- Widowed
- In the U.S. for 24 years
- Father: Bernhardt Alexander
- Mother: Hannah Lebett
- Buried at Washington Cemetery, McDonald Ave., Brooklyn, NY [364]

May have had a son, Leopold Alexander [365]:
- b. 2 Oct 1862 Austria
- d. 3 Apr 1916 Kings County #7584
- Insurance Agent
- Married
- Washington Cemetery
- 22 Fayette st. (27?)
- Father: Marcus Alexander (Austria) (According to Leopold’s Death Certificate)
- Mother: Salei Held (Austria) (According to Leopold’s Death Certificate.)
- in New York, and US, 35 years at time of death.
- Signed by Mrs. R. Alexander, wife