Lorenzo is common Dow given name. Book of Dow is indexed by names only, and does not even have page numbers in the index - but gives a letter code to help follow the line and locate the entry in the test. Without additional names, search would be time consuming. Best help would be name of a spouse or any offspring. This would enable me to compare codes and narrow the possibilities. There are no dates or locations in the index itself, but they do appear in the text.