Commemoration organisers said at the ceremony at Dunedin's Market Reserve they also aimed to "fight for the living" to prevent further workplace deaths.
Ms Gibbs had initially considered attending last year's Dunedin ceremony, which marks International Workers Memorial Day, but decided it was "a little bit soon" after her partner's death.
Mr Low (30) was working as part of a team at the former Fisher and Paykel plant in Mosgiel in August 2009 when he fell 4m through the roof, receiving serious head injuries. He later died in Dunedin Hospital.
This year, family friend and veteran trade unionist Sandra Bishop had spoken to Ms Gibbs' mother, Maureen McKay, and suggested Ms Gibbs consider attending.
Ms Gibbs discussed the idea with her children, Shikayla Low (23 months), Callum Low (5) and Talia Low (6) , and they were among about 50 people attending the ceremony yesterday.
"It was positive. It was nice to know there's solidarity there, knowing there's other people out there that are suffering the same way I am, and there's somewhere you can go and find a little bit of comfort.
"Just knowing there's other people around, it does make you feel a little bit stronger."
During the ceremony, small crosses bearing the names of people who died in workplace accidents in Otago were planted in the ground, and Ms Gibbs and Callum added one in honour of Mr Low. Twenty-nine crosses marked the men who died in the Pike River mining disaster last year.
