1856 — Frances Demelza Prewett is born the third child and second daughter to Gideon and Harriet Prewett. She is born in close succession to her sister, Felicia, which invites the close bond they come to share as they both grow older.
1858 — Franny shows her first display of magic when she turns one of her brother's toys into a doll by accident.
1860 — Frances is no longer the youngest child and gains a pair of younger brothers, Fitzroy and Felix.
1861 — Frances gains a younger sister, Florence.
1863 — Yet another sister arrives, this one by the name of Felicity. Franny remains closest to Felicia but likes her younger siblings all the same when they aren't squabbling.
1864 — Frederick is born.
1866 — Fiona is born but Frances is less concerned with new sisters and more concerned about Felicia leaving her for her first year at Hogwarts.

1867 — Franny finally gets her Hogwarts letter and goes off to her first year of study. She happily makes Gryffindor and while initially disappointed not to be in the same house as Felicia, soon makes new friends and doesn't mind.
1868 — Frances loses her father. She, like her other siblings, is distraught. She believes, like her older brother, that her father was innocent and while she is not as distrusting toward Aurors as some of her siblings due to it, she does harbor her own share of resentment toward them for a long time. Some time later, the last Prewett is born, a little boy called Fabian.
1872 — Franny takes her OWLs and gets a mixture of Os, Es and a couple As.
1873 — Felicia graduates and marries shortly after.

1874 — Frances graduates from Hogwarts with four NEWTs in Charms, Transfiguration, DADA and History of Magic. After her Coming Out ball, she decides instead of marrying straight away, she wants to try working at the Ministry and takes a job as secretary in the Department of Magical Transportation.
1875 — Franny's acquaintance of two months, Mr. Crabbe, begins to court her. After eleven months of courting, he proposes to her and she accepts.
1876 — Frances marries and becomes Mrs. Crabbe and more than willingly quits her job to become a full time wife and eventual mother.
1878 — Two years into her marriage, Franny is feeling the stress of not having produced a child.
1879 —Still no child, Franny wonders if there is in fact something wrong with her. Thankfully by the middle of the year she has enough reason to believe she is expecting.
1880 — A child is finally born! Franny is happier than she anticipated she would be at having a child and delighted that he is a boy. He is named Ichabod.
1883 — Three years on and Ichabod is still the only child with no sign of that changing any time soon. Frances isn't terribly disturbed by this.
1884 — While attending one of Faustus' events in his campaign for Minister of Magic, Ichabod escapes Franny's watch for just long enough to get run over by a carriage and nearly dies. Franny is beside herself and her marriage becomes strained. The need to produce a spare heir becomes grievously important to Frances. A plague and fire ravage Hogsmeade a couple months later, the former claiming Felicia, much to Frances' great distress.
1885 — Frances' Lady's Maid poisons her with what was supposed to be a fertility potion. Fortunately, she survives. At the end of the year she finds questionable photographs of a woman in her husband's possession and fears he is being unfaithful.
1886 — After nine months of thinking she has finally conceived a child, it turns out to be a false pregnancy. Frances is a mess and goes to stay with her mother at the suggestion of her husband.

Frances is still living with her mother and not really handling life well. Oh dear.