Any number of corrected problems could be sent. The first three entries were free, additional entries required payment of 25c per entry.
The announcement added:
As nearly as possible in all things not
herein mentioned, the rules and regulations of tourney no. one will be
observed …. This presumaby refers to judgement (by sent-in reader
scores), and awards (at most one prize to any individual composer).
The tourney book does not have a title of its own: it is usually catalogued by the title page of its first section: The Dubuque Chess Journal Problem Tournay January to June 1871 (Dubuque, Iowa : O. A. Brownson, Jr.).
The cited section of the tourney book reprints problems 45–55, with solutions to 45–53, the two remaining solutions being printed in the third part. It does not provide any additional information about the tourney, but repeats the prize information from the announcement that the first and third prizes included a bound volume of
our Tourney No. one which
presumably refers to part 1 of the tourney book.
Locate v. 3 of Chess Journal for additional details.
Currently suspected originals:
Carpenter: possible correction of prb. 111, (but note that Black moves from the lower rank) which, in turn, also is a correction by E. Courtenay of the first #2 problem in Alexandre's collection, by Damiano(?).
Shinkman: Almost certainly a correction of prb. 72 (Motto: Qui va, vient, mais ne fait rien) of the first problem tourney (correction is simply: +bPa3), but it is also quite close to prb. 78 (Shoo fly!) of the same tourney. (The identities behind these mottos are unknown, but it doesn't seem impossible that Shinkman himself may have been behind both of them.) An early reprint of the cited problem appears in Deutsche Schachzeitung 28/4 (Apr., 1873), p. 123, prb. 3480, but doesn't include any prize or tourney information.
Portilla: May be related to tourney problem 11. The identity behind the motto (Invenisti-ne?) does not appear to be known, so it may be a self-correction.
1 Prize: G. E. Carpenter
Key: 1. Qe6
Source: Chess Journal Problem Tourney Book, p. 50, prb. 45
2 Prize: W. A. Shinkman
Key: 1. b5
Source: Chess Journal Problem Tourney Book, p. 52, prb. 47