For 58 years, Jenkins consistently maintained a diary of daily events. Though he was a native Welsh speaker, he penned the diaries in English as an aid to self-education. His biographer, Bethan Phillips, wrote in her foreword: . . . The diaries reveal him as a man seeking to exorcise his own demons by attempting to escape from them, but they also reveal him as an astute observer of the people and occurrences impacting upon his own eventful life. His dogged determination in keeping a daily journal, often under the most difficult of circumstances and in the most unpropitious surroundings, has given us a uniquely valuable historical record of life in the nineteenth century. The
Eurynome was an 1163-ton sailing vessel, transporting casks of beer to Australia on the
clipper route, with 12 passengers in a first-class saloon and 21 (including Joseph) who paid a much lower price to share frugal and unhygienic
steerage accommodation on the voyage of 140 days, including three terrifying weeks of gales in the
Roaring Forties. The following month's diary records Jenkins carrying his
swag, pessimistically prospecting and offering rural labour in and around the goldfields town of
Castlemaine, where he found many fellow Welshmen. He rarely left that vicinity except to attend the annual
St David's Day eisteddfod at
Ballarat where, on thirteen consecutive occasions, he was awarded the premier prize for an
englyn (Welsh verse form). Jenkins obtained regular employment in 1884 as a cleaner of streets and drains in the town of
Maldon, a few miles north of Castlemaine. He continued working there until he reached the age of 76, when he became homesick for Wales. Having saved the fare, he departed Maldon by rail on 23 November 1894, and embarked on , which docked at
Tilbury on 5 January 1895. In 1994, a drinking fountain and a plaque were erected at
Maldon railway station to recognise the centenary of Jenkins' departure, and his unique record of the life of a rural worker in Victoria. His own words were cited:
Through this [diary] I am building . . . my own monument (pictured at right). ==Return and controversy==