She first removed a few dry clothes from the cloth line but when she touched one that was still wet, she was electrocuted.
Her mother-in-law raised the alarm attracting the attention of Laventer's brothers-in-law who came to her rescue.
Elijah and Isaiah were also electrocuted when they held Laventer's hands.
Kachien North Location chief Jacob Adienge said preliminary investigations revealed that the electricity was connected to Laventer's house by a quack.
Adienge warned residents against engaging unqualified electricians. "I urge our people to avoid dealing with unqualified electricians when connecting electricity to their homes," he said.
The bodies were removed to Rachuonyo South Sub County Hospital mortuary in Oyugis town.