Yamato Clan, Thunder from the West.

It is said that before Hashirama Senju and Madara Uchiha founded Konoha there lived a man who was known as the God of Thunder. He lived in the land that is nowadays known as the Land of Lightning. Not much is known of the man, even among the members of the Yamato clan, except that he was the first user of the Thunder Style. It is said that the God of Thunder once fought Hashirama Senju to a standstill when the latter was in his prime. After the battle there was no God of Thunder, instead a man - Akio Yamato - now wore the tattered clothes of the God of Thunder while he swore fealty and friendship to the God of Shinobi and Konohakagure.

Akio soon married a young woman called Emiko. Over the years they accumulated 6 daughters and 4 sons. Their time eventually came to an end - the man who had been known as the God of Thunder died in his sleep, surrounded by friends and family. His wife passed away a year later from a sickness. The foundation of the Yamato clan was however set.

Generations passed, during the 4th Ninja World War the head of the clan was Isamu Yamato. He lived through the war and unsurprisingly got married. Eventually the twins Takemaru and Toki were born and five years later a daughter - Hokuto. One day Isamu and his wife never returned from a mission and the Yamato twins were left to look after their sister who had been 4 years old at that time. As far as family units go the remaining three of the Yamato clan have managed to became adults without killing each other, so that counts for something.