Fall River asked this question in 1974 during the South Main Street reconstruction project when particular attention was paid to the giant boulder lying in the middle of the project. Part of the answer they found was something we all now know: David Miller is a war hero who died, serving his country, in a Japanese prison camp after surviving the Bataan Death March.
The rest of the answer they received is as follows...
David Miller's grandfather donated the land immediately adjacent to (and possibly including) the location of the square to the city to build a roadway.
The boulder in the article/picture below was the original monument dedicated to Miller in the 1950's. It still sits in the square, however, it is now being used as a back drop to the McGovern monument rather than its original purpose, a monument to David Miller.
(boulder monument barely peeking out from behind the McGovern monument)
Despite major South Main Street reconstruction in the area, the boulder monument to Miller was guaranteed preservation by the state department of public works in 1974(in the article below).
(Herald News article 8-15-74 *click on pictures to enlarge)
In 1991 the city rededicated the square to Miller with the addition of a plaque.
(Herald News article 6-17-91)
(Herald News article 6-19-91)
History seems to be repeating itself. In 1974, just 20 years after the boulder monument was dedicated to Corporal Miller, the city had already started to forget. The South Main Street reconstruction project sparked renewed interest in Miller's story and heroism. Now, a mere 17 years after Miller Square was rededicated the city government is encouraging us to forget by moving/overshadowing/renaming Corporal Miller's monument. Lest we forget........
Given our history of forgetting David Miller, I would suggest that the only sufficient remedy is to remove the McGovern monument from the square and replace it with a new monument to Miller that tells the story of his life, death, and the reason that monument is there so in another 20 years we will not have to again ask "Who Was David Miller?"