Interesting! The DAR hit it's peak as an extremely popular subject in publications between about 1925 and 1935. Ever play with Google N-Grams?
http://ngrams.googlelabs.com/graph?cont ... oothing=10
Nova Scotia Apple follows a similar pattern. Was there any doubt they were connected at the hip?
http://ngrams.googlelabs.com/graph?cont ... oothing=10