jQuery Grid Plugin - jqGrid

I am trying to reference my data using json using names:

ccur is undefined
http://hostname/jqGrid/js/grid.base.js
Line 823

The response from the server looks like this:

{"total":"1","page":"1","records":"4","rows":[{"c_contact_id":"2","c_first_name":"Michael","c_last_name"
:"1237156971","cn_contact_number_id":"3","cn_type":"mobile","cn_number":"13132324334"},{"c_contact_id"
:"2","c_first_name":"Michael","c_last_name":"1237156971","cn_contact_number_id":"4","cn_type":"home"
,"cn_number":"14148991234"},{"c_contact_id":"1","c_first_name":"Michael","c_last_name":"1237156910","cn_contact_number_id"
:"1","cn_type":"mobile","cn_number":"13132324334"},{"c_contact_id":"1","c_first_name":"Michael","c_last_name"
:"1237156910","cn_contact_number_id":"2","cn_type":"home","cn_number":"14148991234"}]}

My colModel looks like this:
"colModel":[
{"name":"c_contact_id","index":"c_contact_id","width":120},
{"name":"cn_contact_number_id","index":"cn_contact_number_id","width":120},
{"name":"c_first_name","index":"c_first_name","width":120},
{"name":"c_last_name","index":"c_last_name","width":120},
{"name":"cn_type","index":"cn_type","width":120},
{"name":"cn_number","index":"cn_number","width":120}
],
"multiselect":false,
"root":"rows",
"repeatitems":false,
"id":"c_contact_id",


Thanks much for any help!