Age 37 years and 4 months.

Benjamin was the son of Gabriel Leverich (1753-1828) and Hannah Leverich Thorpe (1755-1827). Both of Benjamin's parents were buried first at Leverich Family Burial Ground, but they were apparently later reinterred in the Newtown Presbyterian Church Cemetery (this might explain the duplicate findagrave memorials at both locations for many of the Leverich family).

See also :
https://leverichgenealogy.org/wp-content/uploads/7-188-Benjamin-Leverich-Individual-Narrative-TMG-11-22-2018.pdf

Here is a link to Benjamin's father Gabriel's biography that includes sources for Benjamin and siblings:

https://leverichgenealogy.org/wp-content/uploads/6-67-Gabriel-Leverich-Individual-Narrative-TMG-12-5-2018.pdf

That narrative in the link above notes that "Benjamin Leverich was born at Newtown, Queens Co, New York 16 September 1794, married 19 November 1818, Evelina Myers, and died at Manhattan, New York Co, New York on 16 January 1832." The sources cited for this are: James Riker Papers , Box 9, Notebook 2, page 87; Wyckoff, Long Island Cemetery Inscriptions, Volume 4, Part 2, page 72; and, New Jersey, County Marriages , 1682-1956, Family Search Index, online https://familysearch.org/pal:/MM9.1.1/VW5Y- HY6, (accessed 30 April 2014), microfilm number 1302553, digital folder 004541270, image 00704.

Benjamin and Bemjamin's siblings and children are mentioned in the following related to the probate for Gabriel (d. 1839):

An abstract of the will of Gabriel Leverich (Prob. May 27, 1839 p. 139-47] online at American ancestors.org:

Will of Gabriel Leverich, of Brooklyn, Harnessmaker, February 12, 1839:
--Mentioned are sisters Sarah and Anne, brother Samuel, nephew Gabriel son of the said brother Samuel, and deceased brother Benjamin. Codicil of February 13, 1839 provides that brother Sackett should not share in the estate.
--A separate petition by Samuel Leverich of Chemung Co. NY, shows the testator [Gabriel] died at Brooklyn February 20, 1839 leaving the petitioner, his brother, and another brother Sackett, and four sisters, Sarah and Anne Leverich of Brooklyn, Hannah (wife of John Elder) of NY and Elizabeth (wife of Rem Remsen) of Newtown Queens County all of age; and also three children of a deceased brother Benjamin Leverich, [namely] John T [Leverich]. Evelyn, and Theodore Leverich, minors, of Newark New Jersey.

Another source for the brothers is A Godly Minister: The Rev. William Leverich..." by Michael E. Leveridge of Cambridge and Thomas Leverich of W. Windsor NJ:
http://www.leverichgenealogy.org/wp-content/uploads/A_Godly_Minister.pdf)

The pedigree on p. 214 shows the following generations:

[The generations numbers one and two are uncertain given the information in the first link provided above]

3. *Gabriel Leverich (1753-1828) mar. Hannah Leverich Thorpe (d. 1827)
His sons as in the above will:

4. *Gabriel (1799-1839)

4. *Sackett (1795-1839)

4. *Benjamin (1794-1832)

Thanks to Thomas Leverich and his website with extensive notes on the Leverich's and their burial ground in Newtown (http://www.leverichgenealogy.org).

There is also a description of the Newtown Presbyterian Church that appeared in the NY Genealogical and Biographical Record between April 1924 and October 1925 with burials, marriages, etc.: http://longislandgenealogy.com/NewtownPresb.pdf.

[The generations numbers one and two are uncertain