The only way is on the computer. If you actually receive a letter of inheritance than ya. Plus you can get her back by going to the last save with your wife. learn more at. http://www.usep.net/wiki/Skyrim:marriage
You will have to start the game all over again; you won't be getting a wife soon unless you start again. Find out who you want to marry and win their favor; you can marry any of the eligible individuals regardless of race or age.