This street is named for Cleopatra Lorena Johnson Porter (1888–1961). As FamilySearch tells us, her parents were Archie James Johnson and Sarah Melinda Young. Valarie Bunn, on her blog Wedgwood in Seattle History, explains how she found out the street was named for the Johnsons’ daughter rather than the queen of Egypt:
Plats named Cleopatra Park, 1st and 2nd Additions, were filed in 1905 and 1907 before Ballard was officially annexed to Seattle in May 1907 and before Ballard’s street names were revised to be consistent with the Seattle street system.… The owners of the Cleopatra Park Addition were Archie J. Johnson and his wife Linnie Johnson. We see that even though the property was in Ballard in Seattle, their plat filing document was notarized in Corvallis, Oregon.… Looking on the census of 1910 for this couple, we see the Johnsons recorded as living in Corvallis where Archie was the president of the Benton County State Bank. The census shows that Archie and Linnie Johnson had six children, all of whom were born in Oregon except their first child, daughter Cleopatra, who was born in Seattle in 1888.
Coming across Wedgwood in Seattle History and this post in particular, which also delves into the origins of Aloha Street and provides numerous resources for those who are interested in making their own discoveries, was one of the things that finally prodded me to get Writes of Way off the ground. Thank you, Valarie!