Perhaps you should try some spelling variations:
"jacobus henricus hart 't hof" » "jacob henriques hart 't hof", "jacobus fenwick hart 't hof", "jacobus merrick hart 't hof", "jacobus henricus harris 't hof", "jacobus henricus baers 't hof", "jacobus henricus garde 't hof"
"jacobus hendricus van 't hof" » "jacobus hendrik van 't hof"

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: (("jacobus hendricus van 't hof") OR ("jacobus henricus hart 't hof")).
• Removing quotes may allow a broader search: (( jacobus hendricus van 't hof ) or ( jacobus henricus hart 't hof )).
• Adding a wildcard symbol may retrieve word variants: (("jacobus hendricus van 't hof") or ("jacobus henricus hart 't hof"))*.