Right-Click the appropriate link, below.

Note: The PowerPoint presentation and Slide show (1 & 2, below)
 will take some time to download, as they are each about 120 Mb.

The viewer is only about 30 Mb.

The Wolff Genealogy is 90 Mb

Right-Click a link, below, then click the "Save Link as" hyperlink in
your browser's dialog box..