Rebecca Marshall FarnbachSpecial to Valley NewsTwo greenhorns from the East with good business savvy cashed in on adventure and made their fortunes in frontier Arizona before one of them purchased 87,500 acres in the Temecula Valley.Walter Lennox Vail was born in Halifax, Nova Scotia in 1852, the same year Native people gathered at Apis’ adobe by Temecula Creek to sign the Treaty of Peace and Friendship. By Walter’s sixth birthday, he and his family moved to New Jersey where his father owned grain farms and a mill. Although Walter agreed to someday take over the family business, he dreamed of venturing to the West. When profits fell, Walter