Okay because the writers of Warehouse 13 have several discrepancies in Helena's timeline, I've worked out a timeline of how things went that make the most sense to me. After all, in the world of the show, being brought before the Regents is a serious offense, and given Helena was bronzed in 1900 and the initial mention of Christina's death was in 1899, having a year in which Helena abused Artifacts, built a time machine
from scratch and tracked down her daughter's killers and tortured and killed them is EXTREMELY unrealistic to me. So I've reorganized the timeline based on other canon mentions, and made it far more logical to me.
( Helena's timeline as I see it )