The Passionist Nuns at the Santuario-Monastero di Santa Gemma Galgani in Lucca, Italy (where St Gemma's holy remains are kept) have recently made available on their website an treasury of wonderful documents on St Gemma, however unfortunately for English readers they are all in Italian. Nevertheless, I hope to have a few of the unique one's translated into English.
Some of the most interesting documents are "Transito della Santa Gemma"- (The Last Hours of St Gemma) and also "Santa Gemma Nel Mondo Contemporaneo" (St Gemma in the Contemporary World- this is a thesis with various information on the life of St Gemma), "Lettere di P. Germano a Cecilia Giannini" and also "Lettere di Cecilia Giannini a P. Germano" (Letters from Father Germano to Cecilia Giannini and also Letters from Cecilia Giannini to Father Germano) and also "Lettere di Santa Gemma a Monsignor Volpi" (Letters of St Gemma to her confessor, Monsignor Volpi) along with a good number of letters of St Gemma to various other persons.
It is of course possible to use Google translator tool the do a rough translation of these documents. First you download the document to your PC, then open Google translator and choose the "upload a document" feature. Again however, this provides only a "rough" translation.
Anyway, for those interested, the recently published documents on St Gemma are located on the Monastery website here:
"I shall love You; I shall love You always! When day breaks, when evening turns into night, at every hour, at every moment; I shall love You always, always, always!" -St Gemma Galgani