After being mauled by a bear in 1935, Emmett was rescued by Rosalie Hale, and given a second chance at life after being transformed into a vampire by Carlisle Cullen at her request. Rosalie and Emmett were rarely parted after this, being that they were true soul mates. The pair were integral members of the Cullen family and participated eagerly in removing the numerous impediments it faced. Emmett also changes his eye colour like most vampires. Having enhanced physical vampiric strength, Emmett is the strongest in the Olympic Coven. Emmett has massive muscles which cannot grow since he is a vampire. Emmett is married to Rosalie they have a strong connection together.
In 1933, Rosalie was transformed into a vampire by Carlisle Cullen after being beaten to the brink of death by a group of men including Royce King, her fiancé. Two years later, Rosalie rescued a young man named Emmett from being mauled by a bear, and after his transformation into a vampire, the two fell very deeply in love. Along with Emmett, Rosalie was an integral member of the Cullen family and fought eagerly against those who threatened them.
In 1920, after having been institutionalized by her family, an unknown vampire transformed Alice into a vampire to save her from the relentless tracker James. Later, she was led to the love of her life Jasper after receiving a vision of him, and the pair subsequently began a life with the peaceful coven of the Cullen family.