I'm not sure specifically which 'Jon Brennan True Story' you are referring to. There could be many people named Jon Brennan. It might be a personal story, a documentary, or something else. More context would be really helpful.
Again, without more information on this 'Jon Brennan True Story', it's hard to determine its significance. It could be significant to his family and friends if it's a personal memoir. Or if it's a public story, it might have significance in terms of inspiring others or shedding light on a particular issue.
I don't have enough information to determine who Edith Brennan is in the true story. It could be someone from a personal family narrative, a local historical event, or even a relatively unknown figure in a specific field.
There are so many Edith Brennans that might exist in the world. If she is a well - known figure in a specific area like a small town, her true story could involve things like her family life, her contributions to the community, her relationships with neighbors, etc. But without further details, all we can do is guess about what her story might be.
As I don't know the actual 'Brennan Story', it's hard to say its significance. It could be significant to Brennan's family if it's a family story, or it could be significant in a community if Brennan did something remarkable in that community.