The Lockhart, later Lockhart-Ross Baronetcy, of Carstairs in the County of Lanark, was a title in the Baronetage of Nova Scotia. It was created on 28 February 1672 for William Lockhart. The fourth Baronet used the surname Ross-Lockhart, which was also borne by the sixth, seventh, eighth and ninth Baronets. The sixth Baronet was an Admiral

Admiral

Admiral is the rank, or part of the name of the ranks, of the highest naval officers. It is usually considered a full admiral and above vice admiral and below admiral of the fleet . It is usually abbreviated to "Adm" or "ADM"...

 in the Royal Navy

Royal Navy

The Royal Navy is the naval warfare service branch of the British Armed Forces. Founded in the 16th century, it is the oldest service branch and is known as the Senior Service...

 and sat as Member of Parliament

Member of Parliament

A Member of Parliament is a representative of the voters to a :parliament. In many countries with bicameral parliaments, the term applies specifically to members of the lower house, as upper houses often have a different title, such as senate, and thus also have different titles for its members,...

 for Lanark

Lanark (UK Parliament constituency)

Lanark was a county constituency of the House of Commons of the Parliament of the United Kingdom from 1918 to 1983. It elected one Member of Parliament by the first past the post voting system....

 and Lanarkshire

Lanarkshire (UK Parliament constituency)

Lanarkshire was a county constituency of the House of Commons of the Parliament of the United Kingdom from 1708 to 1868. It elected one Member of Parliament by the first past the post voting system.-Boundaries:...

. The seventh Baronet was Member of Parliament for Tain Burghs

Tain Burghs (UK Parliament constituency)

Tain Burghs, was a constituency of the House of Commons of the Parliament of Great Britain from 1708 to 1801 and of the Parliament of the United Kingdom from 1801 to 1832, sometimes known as Northern Burghs. It was represented by one Member of Parliament .The first election in Tain Burghs was in 1708...

, Ross-shire

Ross-shire (UK Parliament constituency)

Ross-shire was a county constituency of the House of Commons of the Parliament of Great Britain from 1708 to 1801 and of the Parliament of the United Kingdom from 1801 to 1832...

 and Linlithgow Burghs. The ninth Baronet was an inventor and commercial entrepreneur. The title became extinct on his death in 1942.

Lockhart-Ross Baronets, of Carstairs

• Sir William Lockhart, 1st Baronet (-1710)
• Sir James Lockhart, 2nd Baronet (-1755)
• Sir William Lockhart, 3rd Baronet (1715- 1758)
• Sir James Ross-Lockhart, 4th Baronet (1717-1760)
• Sir George Lockhart, 5th Baronet (1718-1778)
• Sir John Lockhart-Ross, 6th Baronet (1721-1790)
• Sir Charles Lockhart-Ross, 7th Baronet (1763-1814)
• Sir Charles William Frederick Augustus Lockhart-Ross, 8th Baronet (1812 -1883)
• Sir Charles Henry Augustus Frederick Lockhart-Ross, 9th Baronet
  Sir Charles Ross, 9th Baronet
  Sir Charles Henry Augustus Frederick Lockhart Ross, 9th Baronet was a Scottish inventor and commercial entrepreneur who invented the innovative and often controversial straight-pull actioned Ross rifle....
  
  (1872-1942)