What nationalities were the Cartwright boys' mothers on the TV show 'Bonanza'?

Ben Cartwright played by Lorne Greene, who was a widower. Michael Landon played the youngest son Little Joe with Dan Blocker the middle son Eric "Hoss" Cartwright and Pernell Roberts as the oldest son Adam Cartwright. All three sons had different mothers and all being deceased

Ben Cartwright first married Elizabeth Stoddard, presumably from New England, who died in childbirth, giving birth to Adam, the eldest brother.
Next, he married Inger Borgstrom, who was Swedish. She gave birth to Eric (Hoss), but she was killed by Indians.
Lastly, he married Marie DeMarigny, presumably from Boston, who gave birth to Little Joe. She later died after falling from a horse.
Ben's wives each appear in a flashback episode - "Elizabeth, my love"; "Inger, my love" and "Marie, my love".

I'm sorry, but I thought Marie was from New Orleans. Remember, Adam and Joe had an argument and Adam went for the button, "your French Quarter mother."