*<div id="Report1831"></div>Anonymous, c. 1831, Report on the condition of Upsal for the Horticultural Society of Pennsylvania, maintained after M’Mahon’s death by his wife (1831: 10–11)<ref>''Report of the Committee Appointed by the Horticultural Society of Pennsylvania for Visiting the Nurseries and Gardens in the Vicinity of Philadelphia'' (Philadelphia: W. Geddes, 1831), 10–11, [https://www.zotero.org/groups/54737/keywords_in_early_american_landscape_design/items/itemKey/SSQIGDZR/q/report%20of%20the%20committee view on Zotero].</ref> [[#Report1831_cite|back up to History]]
:“Mrs. M’Mahon’s Garden is about 3 miles north of Philadelphia. It contains a [[green house]] 60 feet long and calculated to hold a great many plants. The collection is good. The establishment is 19 years old, and was founded by that enterprising and distinguishes distinguished horticulturist, Mr. B. M’Mahon, husband of the present proprietor.
:“Here is the largest Portlandia that we have seen, and a good selection of the succulent family, with many oranges, lemons, shaddock, etc. A very large tree of Maclura aurantiaca or osage orange; a highly ornamental tree, with bright green foliage, and standing longer in the fall than any other of the deciduous tribe. It bears a large green fruit, not unlike an orange. We think that Mr. M’Mahon was the first to introduce this tree, brought back by Lewis and Clark. Here we saw an uncommon large shrub of the Lonicera tartarica, or tartarian honeysuckle; it is twenty feet in diameter, and high in proportion.
:“The ground contains about 20 acres, distributed in [[nursery]] stock, and growing vegetable seeds.
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