Then appeared before the subscriber, a justice for said state, & county, Frederick Tombough aged about thirty-nine years, who being sworn on the holy Evangelists of Almighty God, deposeth and sayeth, that some time in March 1786, he, this deponent was in partnership with Mathias Zimmers, now deceased, in a blacksmith's shop, adjoining said Zimmers' coppersmith shop -- and that he remembers two copper pipes being brought into his shop by said Zimmers to fit the seams -- which pipes he was told were for M"" Rumsey's Steam boat -- and further that he knew of no work being done in M' Zimmers' shop on account of said boat previous to the thne above mentioned.

Sworn before

GEORGE SCOTT.

No. 15. The certificate of M'"s Zimmers, widow of M'" Zimmers, which IS corroborated, and the time established, by the next certificate :

1068 EARLY STEAM

This may certify, that I the subscriber, wife to the late ATathias Zimmers, deceased, have no accounts in my books so as to ascertain the time of Mr Rumsey's bespeaking his machinery for bis Steamboat, or as to ttje time of his taking it away -- but that Michael Baltzel turned works to finish the first machinery said Rumsey had of my husband according to the best of my knowledge. -- As witness my hand, this 29th, April 1788.

ELIZABETH ZIMMERS.

No. 16.

The certificate of Michael Baltzel, Turner, which establishes the time of Mrs Zimmers' fact.

Frederick-town, 11th. April, 1788.

This may certify that I the subscriber turned works for M^ James Rumsey of Virginia, for his Steamboat viz. a round piece of wood about eight inches diameter and about four feet long, &c. to round his copper works upon -- said turning was done in March 1786.