Werner Hans Erhard was born on September 5, 1935, in Philadelphia, Pennsylvania, a city whose mid-century character formed the geographic backdrop to the early life of a man who would work across several distinct professional roles. The biographical record carries a small but notable ambiguity: the Library of Congress Name Authority File records his birth year as 1936 rather than 1935, a discrepancy that the available sources do not resolve. He is a citizen of the United States.

As an adult, Erhard pursued careers as a writer, a lecturer, and a business consultant. These are the three professional identities the record attaches to his name, each representing a distinct mode of working and engaging — through written language, through public address, and through the practical concerns of business consultation. The specific works, engagements, and clients that would give texture to this career are not established in the available record, and no further detail can responsibly be added here.

The facts at hand do not include a date or place of death, nor do they supply a current location or role beyond the professional designations already noted. What the record does confirm is that Werner Hans Erhard, born in Philadelphia and a citizen of the United States, is identified as an American author and lecturer — a description that holds regardless of the uncertainty surrounding whether his birth year is properly given as 1935 or 1936. That unresolved question about so basic a fact as his year of birth remains the most concrete peculiarity the available evidence offers about a figure otherwise identified in plain and functional terms.