Taken from an article in the June, 2000 issue of The Oracle, published by the Friends of the Littleton Library and Museum
There is an article in the September 29, 1961 edition of The Littleton Independent explaining the street patterns of Littleton. This article should help explain the "why" of the street names, or at least some of them.
The diagram at right shows the pattern established in the street naming ordinance. Not all modern subdivisions have continued to follow this pattern, however.