Whom Louis Sullivan worked with was considered the father of the skyscraper?

Louis Sullivan is often associated with the development of the modern skyscraper, but he is frequently recognized for his collaboration with architect Dankmar Adler. Together, they designed some of the earliest high-rise buildings, with Sullivan's innovative use of steel framing and decorative elements contributing significantly to the skyscraper's evolution. While Sullivan is sometimes called the "father of skyscrapers" for his architectural philosophy, it is often acknowledged that he built upon the foundations laid by earlier architects, such as William Le Baron Jenney, who is credited with designing the first true skyscraper.