I have no idea if anyone is still researching this but I found in a Grantor/Grantee index my family dealing with Frederick Firehawk in NYC and wanted to find out who he was.
*Grantor: William Slamm and others, Joseph Slamm and others and
Levi D Slamm and Margaret his wife to *Grantee: Frederick Firehawk Lib. 403 Page 556 dated Feb 23, 1840 and recorded Apl. 4, 1840. Also one other from
Levi D Slamm and Margaret his wife to Frederick Firehawk Lib. 403 Page 559 - same dates.
*Grantor: Frederick Firehawk to *Grantee: Trustees of Mary Slamm Dated Feb 24, 1840 and recorded Apl 4, 1840 Lib 403 pages 557 & 560.
My guess is the Frederick Firehawk was a lawyer.