Khenmes is known for sure only from two sources. A fragment of a statue in the British Museum (EA75196). Khenmes is also attested in a rock inscription found Aswan.
BM EA75196 | A granodiorite statue of man seated on the ground belonging to Khenmes, including the royal name of king Sekhemkare.[4][5]
de Morgan, Cat. I, 26 186 | At the Aswan-Philae road a rock inscription by vizier Khenmes.[6] It mentions his mother and two children. His wife may be Senebtify.[7]
Aswan 1314 (weak) | At Elephantine, a stela which may relate to his family.[8] Family members seems different, Ameny not mentioned.
Khartoum 2650 (weak) | At Semna, a table belonging to Ameny, who may have been the son of Khenmes.[9] However, the name Ameny was common and this may refer to a different person.
P. Ramesseum 18 (weak) | At the Ramesseum, a hieratic text which mentions a reporter named Khenmes.[10] Only the name is similar with a different title.