Her particular contribution was to treat a name as a measurable thing. On this account every name carries a vibration determined by its letters, that vibration acts on the person who bears it, and since a name can be changed the vibration can be changed with it, which turns a piece of speculative correspondence into practical advice. Books and lectures on the subject sold well, and the idea belongs to a wider American current of the same period in which L. Dow Balliett and others were setting out systems that assign numbers to letters and read a life from the total.
That current is where the popular numerology of the twentieth century comes from, and the atlas records the lineage because it is often confused with a much older one. Assigning numerical values to letters is ancient and appears in Greek and Hebrew practice, and the modern American systems draw vocabulary from it, but the specific apparatus of life path numbers and name changes was assembled in the decades around 1900 by identifiable writers publishing for a general audience. Framing it as self improvement rather than as occultism is a large part of why it travelled so much further than the material it borrowed from.
There is a documentary problem attached to this entry and it should be stated rather than hidden. A lecture circuit leaves magazines, advertisements and printed books rather than archives, dates for its figures are often unclear in the surviving sources, and the atlas records her period as the early twentieth century instead of supplying years it cannot check. That is a gap in the record and not a judgement about her importance.