I found some engravers.

William Gough, age 25, shows up in the 1900 census, married with 4 children.

The 1904 Meriden City directory shows John and William Gough as a contractors for Parker Bros. It has a strange reference "See Goffe" which refers to one Lucius Goffe. This makes no sense to me because in 1900 he was 63 years old and listed as a Grocer Merchant.

In the 1910 Census records.
John Gough, age 36, immigrated 1886 from England, not a US citizen. George Masters, age 24, immigrated 1909 from England.
Both were boarders at 85 Colony St, Meriden.

In 1910 John Gough did not have his wife Agnes with him. She was residing with him in 1900, 1920 and 1930. In 1900 besides his wife, there was his brother Harold, then 9 years old. Harold later married and raised 2 children while working as a machinist in Philedelphia. There is no record that Harold or his older brother John ever became US Citizens.

John Gough remained an engraver working in Meriden. He never owned a home nor had any children. George Masters may have returned to England, as I can not find any further trace of him.

So, as contractors were John and William also working for A.J. Aubrey?

Pete