Margaret Charlesworth, together with other members of her family and other service families, wore special t-shirts in memory of the six soldiers who killed in a roadside bomb blast Afghanistan in March 2012.
Her son Private Anthony Frampton was 20 when he died alongside Corporal Jake Hartley, 20, Private Christopher Kershaw, 19, Private Daniel Wade, 20, Private Daniel Wilford, 21, and Sergeant Nigel Coupe, 33. Five of those who died were members of the Yorkshire Regiment.
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Her petition is calling to ensure family courts don't allow known abusers to continue having unsafe access to children.
Official consent is needed for structures due to remain place for more than 28 days and the blade is planned to remain until mid-March.
Livermore looks likely to move to West Brom this week and will now hold talks with the club ahead of Saturday's game against Sunderland.