Finding All Occurrences Of Person's Name And Calculating Hours Worked

I'm trying to create a macro that will take name values from a list (Last name, First name) and then find these particular names in a long list of names in another sheet. Once all the occurrences of the name are found, the macro would need to add up all the hours that the person has worked during a given month. For example, I have Jane Doe and John Smith on my shortlist, the macro would have to take the name of the first person, Jane Doe, find all the occurrences of that name in the second sheet that contains names, dates and hours worked, then add up all the hours worked by that person and return the total hours worked value for that parson. Then take the name of the second person, John Smith, and do the same, and so on. Is it possible to do it with macros?