| Name | Street | Number | Occupation |
|---|---|---|---|
| Uballes, Eufemio | Zeballos | 75 | medical doctor |
| Udaondo, Manuel | Lavalle | 138 | consignee |
| Ugalde, Alberto | Perú | 500 | lawyer, director, Banco Hipotecario |
| Ugarriza, A. | Rivadavia | 429 | lawyer |
| Uhl, Carl | Libertad | 534 | artist (profesor de dibujo) |
| Union Française, | Piedad | 142 | newspaper |
| Union Marine Insurance, | Maipú | 79 | |
| Unión, | Alsina | 151 | newspaper |
| United States Consulate, | 25 de Mayo | 223 | |
| United States Legation, | Lavalle | 136 | |
| Unzué, S. | Rivadavia | 172 | consignee |
| Urdinarrain, A. y J. J. | San Martín | 90 | lawyers |
| Uriarte, Gregorio | Rivadavia | 141 | lawyer |
| Uribe, J. A. & Co. | Esmeralda | 75 | consignees |
| Uriburu, Francisco | Corrientes | 25 | President, Banco de la Provincia |
| Uriburu, Vicente | Santa Fe | 121 | medical doctor |
| Urien, Carlos M. | Cangallo | 618 | lawyer |
| Urien, Eduardo | Cuyo | 31 | auctioneer |
| Urioste, Carlos | Perú | 317 | director, Banco de la Provincia |
| Urquiza, Justo G. | Reconquista | 89 | lawyer |
| Urrutia & Durruty | Defensa | 434 | wool-broker |
| Uruguayan Consulate, | Bolívar | 250 | |
| Usanna, Juan | Alberti | 109 | miller |
| Uziel, F. | Corrientes | 85 | ship-broker |
M. G. & E. T. Mulhall, Handbook of the River Plate (London: Trübner & Co., 1885) pages 680-681.
Guía Mensual de Kidd, Imprenta de J. H. Kidd, setiembre de 1884, pages 98, 151, 157.