Mary Sparks' father is my 4x great grandfather. I have quite a bit of information about the Sparks family as I have been researching them for many years.
I have recently found that Thomas Whittaker owned quite a bit of property in Fitzroy and I have a couple of news articles about him as well. If you would like them I could email them to you.
I would also love any information you may have about them. Every little bit helps.
If you give me your email address I could also invite you to my family tree.