Here's a notice about the first Hebrew newspaper, Hamaggid. The notice appeared in print in the August 1857 issue of the The Young Men's Magazine, and several other English publications.
It appears to be translated from a French notice in the March 1857 edition of the Revue Contemporaine, signed by O.S., whom I believe to be Octave Sachot.
Here's a fuller, and more accurate description by Leib Dukes in English in the February 17, 1860 issue of the Hebrew Review and Magazine for Jewish Literature:
Here is the aforementioned Eliezer Lipmann Silbermann:
Here is David Gordon, whom he later hired as co-editor (and by most accounts eventually did almost everything at Hamaggid).