Reporting Services :: Lookup Matching Fields In Rows Of Data

Our division has approximately 300 employees.  We have an annual shift bid where seniority is calculated using Date of Hire.  If 2 or more employees share the same Date of Hire then we fall back to Date of Application.  Currently the SSRS report does a very simple query and shows all the employees in order of their Date of Hire.  If they match then it sorts the matching Date of Hire entries alphabetically by the employee name.  It then becomes the task of the scheduler to locatethe entries with the same Date of Hire and manually look up the employees' dates of applications then sort them accordingly and re-write the report. 

Goal:
Convert the manual process into an automatic process by modifying the current SSRS report.
Data:
The dataset is "DivDir" which contains the following fields:  "EmpName", "DofHire", & "AppDate". 

EmpName    DofHire         AppDate
Adam ......   12/2/1996      11/15/1996
Bob ..... .... 1/16/1997       12/27/1996
Charlie ....... 1/16/1997      12/12/1996
Dan ......   ... 4/11/2001     3/22/2001

In the above example I want the SSRS report to list the employees in this order:  Adam, Charlie, Bob, Dan.How do I do this programmatically using SSRS?