The above embossed postcard seems to be a generic "Souvenir from" type that lets you fill-in-the-blank. The "Oconto, Wis." on the card is hand written.
This card of the "famous" Goodrich & Martineau Co. in Oconto, Wisconsin says on the front that the card was published by Ed Richer, Pub. I wasn't able to find any info on him. The back however says it was published by the H.G Zimmerman & Co. of Chicago. The publishers guide (http://www.metropostcard.com/metropcpublishers.html) on the Metropolitan Postcard Club of NYC website describes H.G.Z. & Co. as:
"A publisher of poorly tinted halftone line block view-cards depicting scenes from New England to mid-West America"...Ouch!