The following article was given to me just a few weeks ago by my mother. It is a print off microfiche. The date is not included but it appears to be from the Napa Register (or Napa Daily Journal) circa 1892-1894. That's my current best estimate on the time frame.
Mr. P. Flannagan is the Democratic nominee for Supervisor in the West Napa No. 1 District. He has been a resident of Napa county for twenty-five years, and is thoroughly familiar with the needs of the county. He has owned and cultivated his farm near Judge Stanly's place in the Carneros District for many years, and commands the confidence and respect of all who know him. Where he is best known he is most liked. He is honest, competent, liberal-minded and safe man, and will make a most excellent Supervisor. He is deserving of the earnest and hearty support of the voters of the First District.
(The above is an exact transcription with Flanagan spelled in correctly.)
A second article indicates what it cost to run for the election. In this case, Patrick spent $60 total to run for office. Depending on the office, people spent anywhere from $5 to $222.75 to run.