George Udny

Udny wrote:^[1]

• A word on "The Currency" 1845^[5]
• A word on law in general, and on the law of England, and the study of it in particular 1855
• Executory interests of the law of England 1857
• Harmony of laws; or, examination of the principles of the laws of civilized nations 1858.

Udny married, firstly, in 1836 Frances Hanway Ryan, eldest daughter of Sir Edward Ryan, who died in Calcutta in 1838 leaving two children.^[6][7] Their daughter Louisa Tempe Udny, born in Calcutta in 1837, was an activist for female education and in feminist politics. She married in 1859 the civil servant Charles Mallet, brother of Louis Mallet, and was mother of Charles Edward Mallet MP.^[8][9]

In 1844, Udny married, secondly, Anne Lydia Tomkins (died 1897), daughter of Samuel Tomkins (the elder) of Russell Place, London, a banker with Willis, Percival & Co.^[10][11][12] Their children included:

• Richard Udny (1847–1923).^[13] He married in 1883 Alice Tomkins, daughter of the banker Samuel Tomkins.^[14] This was a first cousin marriage, Alice being the niece of Anne Lydia. There were successive bankers named Samuel Tomkins who worked at Willis, Percival & Co. Anne Lydia's father was Samuel Tomkins the elder, who married Eliza Alicia Isabella Smith, daughter of Edward Tyrrell Smith RN.^[15] Samuel Tomkins junior, father of Alice, was her brother. The family were therefore close to a bank failure, thought at the time to reflect badly on the private banking sector.^[16]
• Emily, who married Edward Hermon^[17]
• Mary, who married in 1874 John Bailey Haslam.^[18]

George Udny brought a bastardy case against a family member John Henry Udny, grandson of John Udny who was brother to Robert Udny. Turning on an issue of domicile, English or Scottish, on a point where the legal systems differed, this case of conflict of laws was resolved by a House of Lords ruling in Udny v Udny of 1869, which declared John Henry Udny legitimate. The outcome affected possession of a family estate in Aberdeenshire.^[19] Lord Westbury's speech has been described as a "classical exposition of the concept of Domicile at Common Law";^[20] and the decision reached made Udny v Udny a leading case for conflict of laws.^[21]