1855                Address unknown, Dubuque, Iowa.

1856                Corner Main and 4th streets, over George W. Burton’s Store, Dubuque, Iowa.

1855 July.  The Photographic and Fine Art Journal.  (New York, New York.)  New Series Vol. II, Old Series Vol. VIII, No. 7, P. 224.

We copy the following from a Dubuque, Iowa, paper. Messrs. Corey & Pickerill succeed Mr. W. H. White. We wish them prosperity in their new enterprise:

Corey & Pickerill’s Daguerreotypes. — We feel that we owe something of an apology to the above gentlemen, inasmuch as we have never noticed the superior excellence of their pictures, and the tasteful elegance of their rooms, as they deserve. Amongst all the operators in this line of business, who have visited Dubuque, it is doing them but simple justice to say, that they have never been surpassed in the tone, superior finish, and uniform excellence of their daguerreotypes. Their rooms are most conveniently and tastefully arranged, and they have a large collection of specimen plates, embracing many of our prominent citizens, and our most interesting and beautiful ladies. Their operating room combines the advantages of both sky and side lights, with apparatus for directing it at the will of the operator. The public will find themselves warmly welcomed by the gentlemanly proprietors, and we consider a visit to Messrs. Corey & Pickerill’s ” National Daguerrean rooms,” as one of the chief attractions of the city

1856 October 22.  Weekly Express and Herald.  (Dubuque, Iowa.)  October 22, 1856, Vol. XVI, No. 1, P. 5.

National Daguerreotype Gallery.  Messrs. Corey & Pickerill Formerly of Cincinnati, and now of this city, who obtained the highest premium at the Indiana State Fair for the best Daguerreotypes, have, at considerable expense, fitted up a suit of rooms over Geo. W. Burton’s Store, corner Main and 4th streets, 2d story, with a view of locating permanently in this city, and would ask the citizens generally to call and examine specimens of their work.

Every variety and style of Frames, Cases, Lockets, Breast Pins &c., constantly on hand, and at prices to suit all.

Full plate pictures and family groups taken in the most perfect manner.

All pictures taken at their rooms warranted superior to any taken in the west.

Further comment is unnecessary.  We only ask you, one and all to call and see our collection of Pictures and judge for yourselves.  dec. 7.

Advertisement ran from October 22 to Nov. 5, 1856.