I am new to genealogy research....just started researching my family last month. I have paid sub to ancestry US. I would like to know if you think sub. to the world edition will be worth the extra $. My husbands ggrandfather came to this country as a very young boy from Genoa, Italy....alone! Would it help in my research to have access to the World sub. We do not know his parents name.....just an approx birthdate...1840...for him.