THEORIES OF RELATEEVEETY - CATKIND KINDRED

'DOCTOR WHO'
"GRIDLOCK"

From the TARDIS Data Core wiki:

Thomas Kincade Brannigan was a Cat who lived in New New York with his human wife, Valerie.  

Thomas and Valerie travelled in their flying car and were stuck on the motorway for twelve years. They had several two-month-old children, who looked like normal Earth kittens.

With this episode it was established that humans and Catkind could interbreed.  And so we can use that premise to establish a theory of "relateeveety".

Francine Jones and her ex-husband Clive Jones were the parents of Martha Jones, Tish Jones, and Leo Jones, the grandmother of Keisha Jones, and the aunt of Adeola Oshodi.

At some point in the far future, one of Keisha Jones' descendants would marry a member of Catkind and give birth to a breed of hybrids.  One of those humanoid kitties (or perhaps yet another descendant further along the lineage) would grow up to become Sister Jatt, a Mother Superior of the Sisters of Plenitude.

Sister Jatt was a member of the Sisters of Plenitude. She lived on New Earth in the city of New New York in 5,000,000,023. She monitored the experiments on the humans in the secret Intensive Care Unit beneath the Hospital on New Earth. 

There is another theory of "Relateeveety" which doesn't lead to Catkind save by marriage.  Valerie Brannigan was the wife of Thomas Kinkade Brannigan and mother of their human/kitty hybrids.  Valerie was descended, far down her family tree, from a woman name Moira.

Moira was Bill Potts' foster mother following the death of her birth mother. The two of them lived together in a flat.

EPISODES CITED:

• "New Earth"
• "Gridlock"
• "Smith and Jones"
• "The Lazarus Experiment"
• "42"
• "The Sound Of Drums"
• "Last Of The Time Lords"
• "The Stolen Earth"
• "Journey's End"
• "The Pilot"
• "Extremis"

BCnU!