One of the things that I was startled to discover when I first started looking at old newspapers was that horoscopes were a comparatively recent innovation. They mostly didn’t start appearing until after the Second World War.
However, I did find an early ancestor to the modern horoscope in the August 26 1929 edition of the Toronto Daily Star:
This diagram includes the twelve signs of the Zodiac that would appear in post-war horoscopes, but didn’t include individual entries for each sign.
I did a Google search for William Shwader and found nothing, except for a reference to him as a German astrologer.