Will sort by group, then sort alpha in said group (ie. staff in different departments) (ie: http://cloud.madebyspeak.com/3y281X3c0k1A)
{% assign sorted = List.Items | OrderByThenBy:'FieldValues.StaffCategory', 'asc', 'FieldValues.StaffName', 'asc' %}
{% assign groupCategory = "" %}
<div class="staff-listing row">
{% for Item in sorted %}
{% assign ItemLocation = Item.FieldValues.StaffCategory %}
{% unless groupCategory == ItemLocation %}
<h1 class="staff-listing-header">{{ Item.FieldValues.StaffCategory }}</h1>
{% assign groupCategory = ItemLocation %}
{% endunless %}
<!-- this is the staff member's page link-->
<a class="stafflink" href="{{ Item.FieldValues.StaffLink }}">
<div class="staff-member">
<img alt="Staff Member Image" src="{{ Item.FieldValues.Photo }}">
<span>{{ Item.FieldValues.StaffName }}</span>
<span>{{ Item.FieldValues.StaffTitle }}</span>
<span class="contactinfo">{{ Item.FieldValues.ContactInfo }}</span>
<a href="mailto:{{ Item.FieldValues.StaffEmail }}">{{ Item.FieldValues.StaffEmail }}</a>
<a href="tel:{{ Item.FieldValues.StaffPhone }}">{{ Item.FieldValues.StaffPhone }}</a>
</div>
</a>
{% endfor %}
</div>