Frances Rolleston understood the principle of giving. In her letter of January 4, 1828 she considers the possibility of collecting her fables into a book which she would then sell for more income. The purpose of generating income would be to support causes and needs she cared about. This letter shows that while she lived independently, her means were limited. We also see that as a writer, she knew the value of a second pair of eyes looking over her work.
Here is a selection from that letter of January 4:
I am exceedingly obliged to you for the hint about Peneus, and I wish I could get you to look over various other things of the sort, for one's own eye is not to be trusted. I have about twenty more fables like that I send you, and I have sometimes lately thought would they make a volume, and would it be possible to make it profitable as a means of enabling me to do good in various ways now crowding on me, to which my means are utterly inadequate? but I durst not make the attempt without much previous criticism; and few have ever seen any thing I have ever written, though for many years past I have written a great deal."