Hello, I'm researching some family history, regarding Robert Allan. His sister Kate married Sir William Jackson of Claughton Hall in the 1820s or so. His nephew was William Murray Ross, born in Liverpool in 1825. William's mother was known as Margaret O'Flanagan and also as Margaret Allan (and presumably Ross, at one stage). Is there a family tree for William Jackson, or ideally the Allans? Grateful for any information. Thankyou