(Sung to the tune of “The Twelve Days of Christmas”)
On the tenth day of Christmas, Jane Austen gave to me,
Ten in Fanny’s Family
Nine Named Musgrove
Eight Minor Pieces
Seven Austen Children
Six Classic Novels
F-i-v-e Bennet Sisters
Four Abbey Tilneys
Three Sailing Captains
Two Dashing Colonels
And a love for Mr. Dar…cy.
Fanny Price’s Brothers and Sisters
Lt. Price+Mrs. Price (neé Francis Ward)
William John Susan Sam Charles
FANNY Richard (Mary) Tom Betsy
Note! Tom, Betsy, and Charles were born after Fanny went to Mansfield Park.
Every Woman Dreams... 
Tom was not born after Fanny went to Mansfield Park as when Fanny returns to Portsmouth it says she used to nurse him and looks in his features for those of the baby she knew.
As it has been many years since I have read Mansfield Park, I relied on other sources for the specifics. (I am rereading MP and studying it in more detail for another project at this time.) This chart comes from The Republic of Pemberley, one of the top online resources for all things Jane Austen. http://www.pemberley.com/janeinfo/mansfgen.html
Bertrams, Norrises, and Prices
Lady Bertram, Mrs. Price, and Mrs. Norris are sisters (Mrs. Norris is the eldest of the three, and Lady Bertram the youngest). The names of characters who have died before the period of the main action of Mansfield Park are put in parentheses.
+———————————–+——-+
| | |
Sir Thomas === Maria, Lady Bertram (Rev. Norris) === Mrs. Norris |
Bertram, Baronet | née Ward |
| |
+——–+—-+—+——+ |
| | | | |
Tom Edmund Maria Julia |
ELDEST |
SON Lieut. Price === Mrs. Price
| née
| Frances Ward
|
+——-+——+——+——-+——-+——+——+—–+-+——-+
| | | | | | | | | |
William FANNY John Richard Susan (Mary) Sam Tom Charles Betsy
!____________________!
These three born after
Fanny went to Mansfield