Can't find a phantom link

[boeufmaster]

When I input a formula in a cell, it is randomly updating other cells in different columns with no apparent links. I have gone through and deleted all external links, I've reviewed all formulas to make sure they are manually removed, and I've gone through charts and shapes to make sure there are no hidden references to external ranges. I've even deleted all my external workbooks but it still seems to be happening. For example below, I could delete John Smith's name and it will randomly update numbers within the columns beside it. I can't for the life of me understand what the connection is. The only thing I have noticed is that cells where I have put in a formula like "=1+4" rather than "=sum(1,4)" are not being randomly changed (no idea if that means anything). Thanks for your help!

[TABLE="width: 621"]
<colgroup><col><col><col><col><col></colgroup><tbody>[TR]
[TD]John Smith[/TD]
[TD="align: right"]12[/TD]
[TD="align: right"]21[/TD]
[TD][/TD]
[TD="align: right"]4[/TD]
[/TR]
[TR]
[TD]Stephanie Greer[/TD]
[TD="align: right"]5[/TD]
[TD="align: right"]1[/TD]
[TD="align: right"]4[/TD]
[TD="align: right"]5[/TD]
[/TR]
[TR]
[TD]Nick Williams[/TD]
[TD="align: right"]6[/TD]
[TD="align: right"]7[/TD]
[TD="align: right"]1[/TD]
[TD="align: right"]9[/TD]
[/TR]
[TR]
[TD]Mary Johnson[/TD]
[TD="align: right"]3[/TD]
[TD="align: right"]9[/TD]
[TD="align: right"]7[/TD]
[TD="align: right"]5[/TD]
[/TR]
[TR]
[TD]Robert Brown[/TD]
[TD="align: right"]7[/TD]
[TD="align: right"]5[/TD]
[TD="align: right"]0[/TD]
[TD="align: right"]10[/TD]
[/TR]
[TR]
[TD]Jim Parrish[/TD]
[TD="align: right"]5[/TD]
[TD="align: right"]4[/TD]
[TD="align: right"]0[/TD]
[TD="align: right"]10[/TD]
[/TR]
[TR]
[TD]Tammie Pence[/TD]
[TD="align: right"]5[/TD]
[TD="align: right"]6[/TD]
[TD="align: right"]0[/TD]
[TD="align: right"]1[/TD]
[/TR]
[TR]
[TD]Argenta Wilson[/TD]
[TD="align: right"]7[/TD]
[TD="align: right"]10[/TD]
[TD="align: right"]2[/TD]
[TD="align: right"]4[/TD]
[/TR]
[TR]
[TD]Jake Miller[/TD]
[TD="align: right"]0[/TD]
[TD="align: right"]2[/TD]
[TD="align: right"]7[/TD]
[TD="align: right"]9[/TD]
[/TR]
[TR]
[TD]Jerry Jones[/TD]
[TD="align: right"]0[/TD]
[TD="align: right"]9[/TD]
[TD="align: right"]7[/TD]
[TD="align: right"]9[/TD]
[/TR]
[TR]
[TD]Ben Smith[/TD]
[TD="align: right"]0[/TD]
[TD="align: right"]8[/TD]
[TD="align: right"]8[/TD]
[TD="align: right"]7[/TD]
[/TR]
[TR]
[TD]Andy Garcia[/TD]
[TD="align: right"]3[/TD]
[TD="align: right"]9[/TD]
[TD="align: right"]3[/TD]
[TD="align: right"]6[/TD]
[/TR]
[TR]
[TD]Andrew Johnson[/TD]
[TD="align: right"]5[/TD]
[TD="align: right"]5[/TD]
[TD="align: right"]0[/TD]
[TD="align: right"]1[/TD]
[/TR]
[TR]
[TD]Chuck Martin[/TD]
[TD="align: right"]9[/TD]
[TD="align: right"]6[/TD]
[TD="align: right"]8[/TD]
[TD="align: right"]1[/TD]
[/TR]
</tbody>[/TABLE]