Yes, you can have a separate list of the members who were converted from Enquiry. For that, you need to go to Reports Module and Click on Enquiry Converted.

Now, you can choose the time period from the date filter and select the staff and then, click on Search. After that, you will get the list of the members who are converted from Enquiry in that time period. If you want to download it in CSV format, you can click on the Export button.