UCR's 1967 retrospective describes Trimble as a nucellar seedling of Dancy. The 1905 authors reported a Dancy × Parson Brown cross but said adventive-embryo origin could not be excluded. This parentage tree records the reported Dancy selection relationship, not a proven sexual pedigree.
Source [2]: https://citrusvariety.ucr.edu/crc3026
Revision: UCR's 1967 retrospective says Trimble is regarded as a nucellar Dancy seedling; the 1905 account itself says adventive-embryo origin could not be ruled out. Replace the certain sexual-cross tree with the reported Dancy selection lineage, which is represented separately as a selection link.